diff --git a/runtime/doc/arabic.txt b/runtime/doc/arabic.txt
index 8a55dea..e38aa1a 100644
--- a/runtime/doc/arabic.txt
+++ b/runtime/doc/arabic.txt
@@ -275,7 +275,7 @@
    +  CTRL-^ in insert/replace mode toggles between Arabic/Latin mode
 
    +  Keyboard mapping is based on the Microsoft's Arabic keymap (the
-      defacto standard in the Arab world):
+      de facto standard in the Arab world):
 
   +---------------------------------------------------------------------+
   |!   |@   |#   |$   |%   |^   |&   |*   |(   |)   |_   |+   ||   |~  ّ |
diff --git a/runtime/doc/if_pyth.txt b/runtime/doc/if_pyth.txt
index f9fddaf..3e187db 100644
--- a/runtime/doc/if_pyth.txt
+++ b/runtime/doc/if_pyth.txt
@@ -1,4 +1,4 @@
-*if_pyth.txt*   For Vim version 7.3b.  Last change: 2010 Jul 24
+*if_pyth.txt*   For Vim version 7.3b.  Last change: 2010 Jul 25
 
 
 		  VIM REFERENCE MANUAL    by Paul Moore
@@ -337,12 +337,21 @@
 ==============================================================================
 7. Python 3						*python3*
 
-Python 3 support can exist next to Python 2.x.
+							*:py3* *:python3*
+The |:py3| and |:python3| commands work similar to |:python|.
+ 								*:py3file*
+The |:py3file| command works similar to |:pyfile|.
 
-*:py3* *:python3* *:py3file*
+Vim can be built in four ways (:version output):
+1. No Python support        (-python, -python3)
+2. Python 2 support only    (+python or +python/dyn, -python3)
+3. Python 3 support only    (-python, +python3 or +python3/dyn)
+4. Python 2 and 3 support   (+python/dyn, +python3/dyn)
 
-TODO
-
+You can see that when Python 2 and Python 3 are both supported they must be
+loaded dynamically.  This may cause some problems though, therefore currently
+inside a Vim executable you can only use Python 2 or Python 3.  To switch to
+the other one you need to restart Vim.
 
 ==============================================================================
  vim:tw=78:ts=8:ft=help:norl:
diff --git a/runtime/doc/index.txt b/runtime/doc/index.txt
index c198dc7..47c10ce 100644
--- a/runtime/doc/index.txt
+++ b/runtime/doc/index.txt
@@ -136,10 +136,14 @@
 |i_<Help>|	<Help>		stop insert mode and display help window
 |i_<Insert>|	<Insert>	toggle Insert/Replace mode
 |i_<LeftMouse>|	<LeftMouse>	cursor at mouse click
-|i_<MouseDown>|	<MouseDown>	scroll three lines downwards
-|i_<S-MouseDown>| <S-MouseDown>	scroll a full page downwards
-|i_<MouseUp>|	<MouseUp>	scroll three lines upwards
-|i_<S-MouseUp>|	<S-MouseUp>	scroll a full page upwards
+|i_<ScrollWheelDown>|	<ScrollWheelDown>	move window three lines down
+|i_<S-ScrollWheelDown>|	<S-ScrollWheelDown>	move window one page down
+|i_<ScrollWheelUp>|	<ScrollWheelUp>		move window three lines up
+|i_<S-ScrollWheelUp>|	<S-ScrollWheelUp>	move window one page up
+|i_<ScrollWheelLeft>|	<ScrollWheelLeft>	move window six columns left
+|i_<S-ScrollWheelLeft>| <S-ScrollWheelLeft>	move window one page left
+|i_<ScrollWheelRight>|	<ScrollWheelRight>	move window six columns right
+|i_<S-ScrollWheelRight>| <S-ScrollWheelRight>	move window one page right
 
 commands in CTRL-X submode				*i_CTRL-X_index*
 
@@ -441,10 +445,14 @@
 |<S-Up>|	<S-Up>		1  same as CTRL-B
 |<Undo>|	<Undo>		2  same as "u"
 |<Up>|		<Up>		1  same as "k"
-|<MouseDown>|	<MouseDown>	   scroll three lines downwards
-|<S-MouseDown>|	<S-MouseDown>	   scroll a full page downwards
-|<MouseUp>|	<MouseUp>	   scroll three lines upwards
-|<S-MouseUp>|	<S-MouseUp>	   scroll a full page upwards
+|<ScrollWheelDown>|	<ScrollWheelDown>	move window three lines down
+|<S-ScrollWheelDown>|	<S-ScrollWheelDown>	move window one page down
+|<ScrollWheelUp>|	<ScrollWheelUp>		move window three lines up
+|<S-ScrollWheelUp>|	<S-ScrollWheelUp>	move window one page up
+|<ScrollWheelLeft>|	<ScrollWheelLeft>	move window six columns left
+|<S-ScrollWheelLeft>|	<S-ScrollWheelLeft>	move window one page left
+|<ScrollWheelRight>|	<ScrollWheelRight>	move window six columns right
+|<S-ScrollWheelRight>|	<S-ScrollWheelRight>	move window one page right
 
 ==============================================================================
 2.1 Text objects						*objects*
diff --git a/runtime/doc/insert.txt b/runtime/doc/insert.txt
index 771bf08..315fa72 100644
--- a/runtime/doc/insert.txt
+++ b/runtime/doc/insert.txt
@@ -359,10 +359,14 @@
 <PageUp>	move window one page up			     *i_<PageUp>*
 <S-Down>	move window one page down		     *i_<S-Down>*
 <PageDown>	move window one page down		     *i_<PageDown>*
-<MouseDown>	scroll three lines down			     *i_<MouseDown>*
-<S-MouseDown>	scroll a full page down			     *i_<S-MouseDown>*
-<MouseUp>	scroll three lines up			     *i_<MouseUp>*
-<S-MouseUp>	scroll a full page up			     *i_<S-MouseUp>*
+<ScrollWheelDown>    move window three lines down	*i_<ScrollWheelDown>*
+<S-ScrollWheelDown>  move window one page down		*i_<S-ScrollWheelDown>*
+<ScrollWheelUp>      move window three lines up		*i_<ScrollWheelUp>*
+<S-ScrollWheelUp>    move window one page up		*i_<S-ScrollWheelUp>*
+<ScrollWheelLeft>    move window six columns left	*i_<ScrollWheelLeft>*
+<S-ScrollWheelLeft>  move window one page left		*i_<S-ScrollWheelLeft>*
+<ScrollWheelRight>   move window six columns right	*i_<ScrollWheelRight>*
+<S-ScrollWheelRight> move window one page right		*i_<S-ScrollWheelRight>*
 CTRL-O		execute one command, return to Insert mode   *i_CTRL-O*
 CTRL-\ CTRL-O	like CTRL-O but don't move the cursor	     *i_CTRL-\_CTRL-O*
 CTRL-L		when 'insertmode' is set: go to Normal mode  *i_CTRL-L*
diff --git a/runtime/doc/scroll.txt b/runtime/doc/scroll.txt
index f2daa1b..07c2abb 100644
--- a/runtime/doc/scroll.txt
+++ b/runtime/doc/scroll.txt
@@ -242,7 +242,8 @@
 
 When your mouse has a scroll wheel, it should work with Vim in the GUI.  How
 it works depends on your system.  It might also work in an xterm
-|xterm-mouse-wheel|.
+|xterm-mouse-wheel|.  By default only vertical scroll wheels are supported,
+but some GUIs also support horizontal scroll wheels.
 
 For the Win32 GUI the scroll action is hard coded.  It works just like
 dragging the scrollbar of the current window.  How many lines are scrolled
@@ -250,24 +251,36 @@
 problems, see |intellimouse-wheel-problems|.
 
 For the X11 GUIs (Motif, Athena and GTK) scrolling the wheel generates key
-presses <MouseDown> and <MouseUp>.  The default action for these keys are:
-    <MouseDown>		scroll three lines down.	*<MouseDown>*
-    <S-MouseDown>	scroll a full page down.	*<S-MouseDown>*
-    <C-MouseDown>	scroll a full page down.	*<C-MouseDown>*
-    <MouseUp>		scroll three lines up.		*<MouseUp>*
-    <S-MouseUp>		scroll a full page up.		*<S-MouseUp>*
-    <C-MouseUp>		scroll a full page up.		*<C-MouseUp>*
+presses <ScrollWheelUp>, <ScrollWheelDown>, <ScrollWheelLeft> and
+<ScrollWheelRight>.  For example, if you push the scroll wheel upwards a
+<ScrollWheelUp> key press is generated causing the window to scroll upwards
+(while the text is actually moving downwards).  The default action for these
+keys are:
+    <ScrollWheelUp>	    scroll three lines up	*<ScrollWheelUp>*
+    <S-ScrollWheelUp>	    scroll one page up		*<S-ScrollWheelUp>*
+    <C-ScrollWheelUp>	    scroll one page up		*<C-ScrollWheelUp>*
+    <ScrollWheelDown>	    scroll three lines down	*<ScrollWheelDown>*
+    <S-ScrollWheelDown>	    scroll one page down	*<S-ScrollWheelDown>*
+    <C-ScrollWheelDown>	    scroll one page down	*<C-ScrollWheelDown>*
+    <ScrollWheelLeft>	    scroll six columns left	*<ScrollWheelLeft>*
+    <S-ScrollWheelLeft>	    scroll one page left	*<S-ScrollWheelLeft>*
+    <C-ScrollWheelLeft>	    scroll one page left	*<C-ScrollWheelLeft>*
+    <ScrollWheelRight>	    scroll six columns right	*<ScrollWheelRight>*
+    <S-ScrollWheelRight>    scroll one page right	*<S-ScrollWheelRight>*
+    <C-ScrollWheelRight>    scroll one page right	*<C-ScrollWheelRight>*
 This should work in all modes, except when editing the command line.
 
-Note that <MouseDown> is used for scrolling the text down, this happens when
-you turn the mouse wheel up!
+Note that horizontal scrolling only works if 'nowrap' is set.  Also, unless
+the "h" flag in 'guioptions' is set, the cursor moves to the longest visible
+line if the cursor line is about to be scrolled off the screen (similarly to
+how the horizontal scrollbar works).
 
-You can modify this behavior by mapping the keys.  For example, to make the
-scroll wheel move one line or half a page in Normal mode: >
-   :map <MouseDown> <C-Y>
-   :map <S-MouseDown> <C-U>
-   :map <MouseUp> <C-E>
-   :map <S-MouseUp> <C-D>
+You can modify the default behavior by mapping the keys.  For example, to make
+the scroll wheel move one line or half a page in Normal mode: >
+   :map <ScrollWheelUp> <C-Y>
+   :map <S-ScrollWheelUp> <C-U>
+   :map <ScrollWheelDown> <C-E>
+   :map <S-ScrollWheelDown> <C-D>
 You can also use Alt and Ctrl modifiers.
 
 This only works when Vim gets the scroll wheel events, of course.  You can
@@ -280,6 +293,10 @@
     ZAxisMapping 4 5
 See the XFree86 documentation for information.
 
+						*<MouseDown>* *<MouseUp>*
+The keys <MouseDown> and <MouseUp> have been deprecated.  Use <ScrollWheelUp>
+instead of <MouseDown> and use <ScrollWheelDown> instead of <MouseUp>.
+
 							*xterm-mouse-wheel*
 To use the mouse wheel in a new xterm you only have to make the scroll wheel
 work in your Xserver, as mentioned above.
@@ -288,8 +305,8 @@
 1. Make it work in your Xserver, as mentioned above.
 2. Add translations for the xterm, so that the xterm will pass a scroll event
    to Vim as an escape sequence.
-3. Add mappings in Vim, to interpret the escape sequences as <MouseUp> or
-   <MouseDown> keys.
+3. Add mappings in Vim, to interpret the escape sequences as <ScrollWheelDown>
+   or <ScrollWheelUp> keys.
 
 You can do the translations by adding this to your ~.Xdefaults file (or other
 file where your X resources are kept): >
@@ -303,13 +320,13 @@
 		<Btn5Up>:
 
 Add these mappings to your vimrc file: >
-	:map <M-Esc>[62~ <MouseDown>
-	:map! <M-Esc>[62~ <MouseDown>
-	:map <M-Esc>[63~ <MouseUp>
-	:map! <M-Esc>[63~ <MouseUp>
-	:map <M-Esc>[64~ <S-MouseDown>
-	:map! <M-Esc>[64~ <S-MouseDown>
-	:map <M-Esc>[65~ <S-MouseUp>
-	:map! <M-Esc>[65~ <S-MouseUp>
+	:map <M-Esc>[62~ <ScrollWheelUp>
+	:map! <M-Esc>[62~ <ScrollWheelUp>
+	:map <M-Esc>[63~ <ScrollWheelDown>
+	:map! <M-Esc>[63~ <ScrollWheelDown>
+	:map <M-Esc>[64~ <S-ScrollWheelUp>
+	:map! <M-Esc>[64~ <S-ScrollWheelUp>
+	:map <M-Esc>[65~ <S-ScrollWheelDown>
+	:map! <M-Esc>[65~ <S-ScrollWheelDown>
 <
  vim:tw=78:ts=8:ft=help:norl:
diff --git a/runtime/doc/tags b/runtime/doc/tags
index 78edec1..9dcbaf1 100644
--- a/runtime/doc/tags
+++ b/runtime/doc/tags
@@ -3056,12 +3056,14 @@
 <C-Insert>	os_dos.txt	/*<C-Insert>*
 <C-Left>	motion.txt	/*<C-Left>*
 <C-LeftMouse>	tagsrch.txt	/*<C-LeftMouse>*
-<C-MouseDown>	scroll.txt	/*<C-MouseDown>*
-<C-MouseUp>	scroll.txt	/*<C-MouseUp>*
 <C-PageDown>	tabpage.txt	/*<C-PageDown>*
 <C-PageUp>	tabpage.txt	/*<C-PageUp>*
 <C-Right>	motion.txt	/*<C-Right>*
 <C-RightMouse>	tagsrch.txt	/*<C-RightMouse>*
+<C-ScrollWheelDown>	scroll.txt	/*<C-ScrollWheelDown>*
+<C-ScrollWheelLeft>	scroll.txt	/*<C-ScrollWheelLeft>*
+<C-ScrollWheelRight>	scroll.txt	/*<C-ScrollWheelRight>*
+<C-ScrollWheelUp>	scroll.txt	/*<C-ScrollWheelUp>*
 <CR>	motion.txt	/*<CR>*
 <CSI>	intro.txt	/*<CSI>*
 <Char->	map.txt	/*<Char->*
@@ -3140,10 +3142,12 @@
 <S-Insert>	os_dos.txt	/*<S-Insert>*
 <S-Left>	motion.txt	/*<S-Left>*
 <S-LeftMouse>	term.txt	/*<S-LeftMouse>*
-<S-MouseDown>	scroll.txt	/*<S-MouseDown>*
-<S-MouseUp>	scroll.txt	/*<S-MouseUp>*
 <S-Right>	motion.txt	/*<S-Right>*
 <S-RightMouse>	term.txt	/*<S-RightMouse>*
+<S-ScrollWheelDown>	scroll.txt	/*<S-ScrollWheelDown>*
+<S-ScrollWheelLeft>	scroll.txt	/*<S-ScrollWheelLeft>*
+<S-ScrollWheelRight>	scroll.txt	/*<S-ScrollWheelRight>*
+<S-ScrollWheelUp>	scroll.txt	/*<S-ScrollWheelUp>*
 <S-Tab>	term.txt	/*<S-Tab>*
 <S-Up>	scroll.txt	/*<S-Up>*
 <S-xF1>	term.txt	/*<S-xF1>*
@@ -3152,6 +3156,10 @@
 <S-xF4>	term.txt	/*<S-xF4>*
 <SID>	map.txt	/*<SID>*
 <SNR>	map.txt	/*<SNR>*
+<ScrollWheelDown>	scroll.txt	/*<ScrollWheelDown>*
+<ScrollWheelLeft>	scroll.txt	/*<ScrollWheelLeft>*
+<ScrollWheelRight>	scroll.txt	/*<ScrollWheelRight>*
+<ScrollWheelUp>	scroll.txt	/*<ScrollWheelUp>*
 <Space>	motion.txt	/*<Space>*
 <Tab>	motion.txt	/*<Tab>*
 <Undo>	undo.txt	/*<Undo>*
@@ -6166,18 +6174,22 @@
 i_<Insert>	insert.txt	/*i_<Insert>*
 i_<Left>	insert.txt	/*i_<Left>*
 i_<LeftMouse>	insert.txt	/*i_<LeftMouse>*
-i_<MouseDown>	insert.txt	/*i_<MouseDown>*
-i_<MouseUp>	insert.txt	/*i_<MouseUp>*
 i_<NL>	insert.txt	/*i_<NL>*
 i_<PageDown>	insert.txt	/*i_<PageDown>*
 i_<PageUp>	insert.txt	/*i_<PageUp>*
 i_<Right>	insert.txt	/*i_<Right>*
 i_<S-Down>	insert.txt	/*i_<S-Down>*
 i_<S-Left>	insert.txt	/*i_<S-Left>*
-i_<S-MouseDown>	insert.txt	/*i_<S-MouseDown>*
-i_<S-MouseUp>	insert.txt	/*i_<S-MouseUp>*
 i_<S-Right>	insert.txt	/*i_<S-Right>*
+i_<S-ScrollWheelDown>	insert.txt	/*i_<S-ScrollWheelDown>*
+i_<S-ScrollWheelLeft>	insert.txt	/*i_<S-ScrollWheelLeft>*
+i_<S-ScrollWheelRight>	insert.txt	/*i_<S-ScrollWheelRight>*
+i_<S-ScrollWheelUp>	insert.txt	/*i_<S-ScrollWheelUp>*
 i_<S-Up>	insert.txt	/*i_<S-Up>*
+i_<ScrollWheelDown>	insert.txt	/*i_<ScrollWheelDown>*
+i_<ScrollWheelLeft>	insert.txt	/*i_<ScrollWheelLeft>*
+i_<ScrollWheelRight>	insert.txt	/*i_<ScrollWheelRight>*
+i_<ScrollWheelUp>	insert.txt	/*i_<ScrollWheelUp>*
 i_<Tab>	insert.txt	/*i_<Tab>*
 i_<Up>	insert.txt	/*i_<Up>*
 i_BS	insert.txt	/*i_BS*
@@ -7599,6 +7611,7 @@
 synIDtrans()	eval.txt	/*synIDtrans()*
 syncbind	scroll.txt	/*syncbind*
 syncolor	syntax.txt	/*syncolor*
+synconcealed()	eval.txt	/*synconcealed()*
 synload-1	syntax.txt	/*synload-1*
 synload-2	syntax.txt	/*synload-2*
 synload-3	syntax.txt	/*synload-3*
diff --git a/runtime/doc/todo.txt b/runtime/doc/todo.txt
index c28661d..a7c9aaf 100644
--- a/runtime/doc/todo.txt
+++ b/runtime/doc/todo.txt
@@ -30,15 +30,6 @@
 							*known-bugs*
 -------------------- Known bugs and current work -----------------------
 
-concealends does not appear to work.
-
-if_python3.c is missing some changes that were applied to if_python.c.
-Find the old version of if_python.c from when the copy was made.
-
-Move more common code from if_python.c and if_python3.c to if_py_both.h
-
-Add documentation for Python 3 support.
-
 Include patch for horizontal scoll wheel? (Bjorn Winckler, 2010 Jul 20)
 Additional patch Jul 21.
 
@@ -50,9 +41,13 @@
 Patch for :find completion. (Nazri Ramliy)
 But I prefer to keep term.h and include/term.h  He will work on it.
 
+Add hg changes to version7.txt
+
 Before release 7.3:
 - Rename vim73 branch to default (hints: Xavier de Gaye, 2010 May 23)
 
+Move more common code from if_python.c and if_python3.c to if_py_both.h
+
 Cursor positioning wrong with 0x200e character. (John Becket, 2010 May 6)
 
 Test 69 breaks on MS-Windows, both 32 and 64 builds. (George Reilly, 2010 Feb
diff --git a/runtime/doc/version6.txt b/runtime/doc/version6.txt
index 148929b..8060b28 100644
--- a/runtime/doc/version6.txt
+++ b/runtime/doc/version6.txt
@@ -10357,7 +10357,7 @@
 
 Patch 6.2.066 (extra)
 Problem:    Ruby interface doesn't work with Ruby 1.8.0.
-Solution:   Change "defout" to "stdout". (Aron Grifis)
+Solution:   Change "defout" to "stdout". (Aron Griffis)
 	    Change dynamic loading. (Taro Muraoka)
 Files:	    src/if_ruby.c, src/Make_mvc.mak
 
diff --git a/runtime/doc/version7.txt b/runtime/doc/version7.txt
index de2a7de..ee2c4dd 100644
--- a/runtime/doc/version7.txt
+++ b/runtime/doc/version7.txt
@@ -1,4 +1,4 @@
-*version7.txt*  For Vim version 7.3b.  Last change: 2010 Jul 24
+*version7.txt*  For Vim version 7.3b.  Last change: 2010 Jul 25
 
 
 		  VIM REFERENCE MANUAL    by Bram Moolenaar
@@ -5530,7 +5530,7 @@
 
 Patch 7.1.125
 Problem:    The TermResponse autocommand event is not always triggered. (Aron
-	    Griffix)
+	    Griffis)
 Solution:   When unblocking autocommands check if v:termresponse changed and
 	    trigger the event then.
 Files:	    src/buffer.c, src/diff.c, src/ex_getln.c, src/fileio.c,
@@ -8679,7 +8679,7 @@
 
 Patch 7.2.218
 Problem:    Cannot build GTK with hangul_input feature. (Dominique Pelle)
-Solution:   Adjuste #ifdef.  (SungHyun Nam)
+Solution:   Adjust #ifdef.  (SungHyun Nam)
 Files:	    src/gui.c
 
 Patch 7.2.219 (extra)
@@ -9905,7 +9905,7 @@
 
 Patch 7.2.434 (after 7.2.432)
 Problem:    Compilation fails without the multi-lang feature.
-Solution:   Add #ifdefs. (Johm Marriott)
+Solution:   Add #ifdefs. (John Marriott)
 Files:	    src/menu.c
 
 Patch 7.2.435 (after 7.2.430)
@@ -10032,12 +10032,10 @@
 
 Window title not updated after file dropped.
 
-"g8" doesn't work properly on a NUL.
-
 Fixed crash for ":find" completion, might also happen in other path expansion
 usage.
 
-When 'searchhl' causes a hang make CTRL-C disable 'shearchhl'.
+When 'searchhl' causes a hang make CTRL-C disable 'searchhl'.
 
 
  vim:tw=78:ts=8:ft=help:norl: