diff --git a/runtime/syntax/help.vim b/runtime/syntax/help.vim
index 807c78b..27f7ff1 100644
--- a/runtime/syntax/help.vim
+++ b/runtime/syntax/help.vim
@@ -1,7 +1,7 @@
 " Vim syntax file
 " Language:	Vim help file
 " Maintainer:	Bram Moolenaar (Bram@vim.org)
-" Last Change:	2013 Jul 07
+" Last Change:	2013 Sep 05
 
 " Quit when a (custom) syntax file was already loaded
 if exists("b:current_syntax")
@@ -44,7 +44,7 @@
 syn match helpVim		"VIM REFERENCE.*"
 syn match helpOption		"'[a-z]\{2,\}'"
 syn match helpOption		"'t_..'"
-syn match helpCommand		"`[^` ]\+`"hs=s+1,he=e-1 contains=helpBacktick
+syn match helpCommand		"`[^` \t]\+`"hs=s+1,he=e-1 contains=helpBacktick
 syn match helpHeader		"\s*\zs.\{-}\ze\s\=\~$" nextgroup=helpIgnore
 syn match helpGraphic		".* \ze`$" nextgroup=helpIgnore
 if has("conceal")
diff --git a/runtime/syntax/mail.vim b/runtime/syntax/mail.vim
index 823c6b4..0cd48fc 100644
--- a/runtime/syntax/mail.vim
+++ b/runtime/syntax/mail.vim
@@ -2,7 +2,7 @@
 " Language:		Mail file
 " Previous Maintainer:	Felix von Leitner <leitner@math.fu-berlin.de>
 " Maintainer:		GI <a@b.c>, where a='gi1242+vim', b='gmail', c='com'
-" Last Change:		Thu 02 Feb 2012 08:47:04 PM EST
+" Last Change:		Wed 14 Aug 2013 08:24:52 AM PDT
 
 " Quit when a syntax file was already loaded
 if exists("b:current_syntax")
@@ -55,7 +55,7 @@
 
 " Treat verbatim Text special.
 syn region	mailVerbatim	contains=@NoSpell keepend start="^#v+$" end="^#v-$" fold 
-syn region	mailVerbatim	contains=@mailQuoteExps,@NoSpell start="^\z(\(> \?\)\+\)#v+$" end="\z1#v-$" fold 
+syn region	mailVerbatim	contains=@mailQuoteExps,@NoSpell keepend start="^\z(\(> \?\)\+\)#v+$" end="\z1#v-$" fold 
 
 " URLs start with a known protocol or www,web,w3.
 syn match mailURL contains=@NoSpell `\v<(((https?|ftp|gopher)://|(mailto|file|news):)[^' 	<>"]+|(www|web|w3)[a-z0-9_-]*\.[a-z0-9._-]+\.[^' 	<>"]+)[a-z0-9/]`
diff --git a/runtime/syntax/php.vim b/runtime/syntax/php.vim
index ac3b20c..f27d923 100644
--- a/runtime/syntax/php.vim
+++ b/runtime/syntax/php.vim
@@ -1,7 +1,7 @@
 " Vim syntax file
 " Language: php PHP 3/4/5
 " Maintainer: Jason Woofenden <jason@jasonwoof.com>
-" Last Change: Dec 11, 2012
+" Last Change: Aug 28, 2013
 " URL: https://gitorious.org/jasonwoof/vim-syntax/blobs/master/php.vim
 " Former Maintainers: Peter Hodge <toomuchphp-vim@yahoo.com>
 "         Debian VIM Maintainers <pkg-vim-maintainers@lists.alioth.debian.org>
@@ -616,6 +616,11 @@
   exec "syn sync fromstart"
 endif
 
+syntax match  phpDocCustomTags  "@[a-zA-Z]*\(\s\+\|\n\|\r\)" containedin=phpComment
+syntax region phpDocTags  start="{@\(example\|id\|internal\|inheritdoc\|link\|source\|toc\|tutorial\)" end="}" containedin=phpComment
+syntax match  phpDocTags  "@\(abstract\|access\|author\|category\|copyright\|deprecated\|example\|final\|global\|ignore\|internal\|license\|link\|method\|name\|package\|param\|property\|return\|see\|since\|static\|staticvar\|subpackage\|tutorial\|uses\|var\|version\|contributor\|modified\|filename\|description\|filesource\|throws\)\(\s\+\)\?" containedin=phpComment
+syntax match  phpDocTodo  "@\(todo\|fixme\|xxx\)\(\s\+\)\?" containedin=phpComment
+
 " Define the default highlighting.
 " For version 5.7 and earlier: only when not done already
 " For version 5.8 and later: only when an item doesn't have highlighting yet
@@ -630,6 +635,8 @@
   HiLink   phpConstant  Constant
   HiLink   phpCoreConstant  Constant
   HiLink   phpComment Comment
+  HiLink   phpDocTags PreProc
+  HiLink   phpDocCustomTags Type
   HiLink   phpException Exception
   HiLink   phpBoolean Boolean
   HiLink   phpStorageClass  StorageClass
@@ -668,6 +675,7 @@
   HiLink   phpInterpSimpleCurly Delimiter
   HiLink   phpInterpVarname Identifier
   HiLink   phpTodo  Todo
+  HiLink   phpDocTodo Todo
   HiLink   phpMemberSelector  Structure
   if exists("php_oldStyle")
   hi  phpIntVar guifg=Red ctermfg=DarkRed
diff --git a/runtime/syntax/vim.vim b/runtime/syntax/vim.vim
index b3914e7..3a82c21 100644
--- a/runtime/syntax/vim.vim
+++ b/runtime/syntax/vim.vim
@@ -1,8 +1,8 @@
 " Vim syntax file
-" Language:	Vim 7.3 script
-" Maintainer:	Dr. Charles E. Campbell, Jr. <NdrOchipS@PcampbellAfamily.Mbiz>
-" Last Change:	Jul 05, 2013
-" Version:	7.3-26
+" Language:	Vim 7.4 script
+" Maintainer:	Charles E. Campbell <NdrOchipS@PcampbellAfamily.Mbiz>
+" Last Change:	Aug 16, 2013
+" Version:	7.4-1
 " Automatically generated keyword lists: {{{1
 
 " Quit when a syntax file was already loaded {{{2
@@ -550,15 +550,31 @@
 " Allows users to specify the type of embedded script highlighting
 " they want:  (perl/python/ruby/tcl support)
 "   g:vimsyn_embed == 0   : don't embed any scripts
-"   g:vimsyn_embed ~= 'l' : embed lua      (but only if vim supports it)
-"   g:vimsyn_embed ~= 'm' : embed mzscheme (but only if vim supports it)
-"   g:vimsyn_embed ~= 'p' : embed perl     (but only if vim supports it)
-"   g:vimsyn_embed ~= 'P' : embed python   (but only if vim supports it)
-"   g:vimsyn_embed ~= 'r' : embed ruby     (but only if vim supports it)
-"   g:vimsyn_embed ~= 't' : embed tcl      (but only if vim supports it)
-if !exists("g:vimsyn_embed")
- let g:vimsyn_embed= "lmpPr"
+"   g:vimsyn_embed ~= 'l' : embed lua
+"   g:vimsyn_embed ~= 'm' : embed mzscheme
+"   g:vimsyn_embed ~= 'p' : embed perl
+"   g:vimsyn_embed ~= 'P' : embed python
+"   g:vimsyn_embed ~= 'r' : embed ruby
+"   g:vimsyn_embed ~= 't' : embed tcl
+if has("win32") || has("win95") || has("win64") || has("win16")
+ " apparently has("tcl") has been hanging vim on some windows systems with cygwin
+ let s:trytcl= (&shell !~ '\<\%(bash\>\|4[nN][tT]\|\<zsh\)\>\%(\.exe\)\=$')
+else
+ let s:trytcl= 1
 endif
+if !exists("g:vimsyn_embed")
+ let g:vimsyn_embed= ""
+ if has("lua")        |let g:vimsyn_embed= g:vimsyn_embed."l"|endif
+ if has("mzscheme")   |let g:vimsyn_embed= g:vimsyn_embed."m"|endif
+ if has("perl")       |let g:vimsyn_embed= g:vimsyn_embed."p"|endif
+ if     has("python") |let g:vimsyn_embed= g:vimsyn_embed."P"
+ elseif has("python3")|let g:vimsyn_embed= g:vimsyn_embed."P"|endif
+ if has("ruby")       |let g:vimsyn_embed= g:vimsyn_embed."r"|endif
+ if s:trytcl         
+  if has("tcl")       |let g:vimsyn_embed= g:vimsyn_embed."t"|endif
+ endif
+endif
+unlet s:trytcl
 
 " [-- lua --] {{{3
 let s:luapath= fnameescape(expand("<sfile>:p:h")."/lua.vim")
@@ -570,7 +586,7 @@
   endif
  endfor
 endif
-if (g:vimsyn_embed =~ 'l' && has("lua")) && filereadable(s:luapath)
+if (g:vimsyn_embed =~ 'l') && filereadable(s:luapath)
  unlet! b:current_syntax
  exe "syn include @vimLuaScript ".s:luapath
  if exists("g:vimsyn_folding") && g:vimsyn_folding =~ 'l'
@@ -597,7 +613,7 @@
   endif
  endfor
 endif
-if (g:vimsyn_embed =~ 'p' && has("perl")) && filereadable(s:perlpath)
+if (g:vimsyn_embed =~ 'p') && filereadable(s:perlpath)
  unlet! b:current_syntax
  exe "syn include @vimPerlScript ".s:perlpath
  if exists("g:vimsyn_folding") && g:vimsyn_folding =~ 'p'
@@ -624,7 +640,7 @@
   endif
  endfor
 endif
-if (g:vimsyn_embed =~ 'r' && has("ruby")) && filereadable(s:rubypath)
+if (g:vimsyn_embed =~ 'r') && filereadable(s:rubypath)
  unlet! b:current_syntax
  exe "syn include @vimRubyScript ".s:rubypath
  if exists("g:vimsyn_folding") && g:vimsyn_folding =~ 'r'
@@ -650,7 +666,7 @@
   endif
  endfor
 endif
-if g:vimsyn_embed =~ 'P' && (has("python") || has("python3")) && filereadable(s:pythonpath)
+if g:vimsyn_embed =~ 'P' && filereadable(s:pythonpath)
  unlet! b:current_syntax
  exe "syn include @vimPythonScript ".s:pythonpath
  if exists("g:vimsyn_folding") && g:vimsyn_folding =~ 'P'
@@ -668,43 +684,31 @@
 unlet s:pythonpath
 
 " [-- tcl --] {{{3
-if has("win32") || has("win95") || has("win64") || has("win16")
- " apparently has("tcl") has been hanging vim on some windows systems with cygwin
- let s:trytcl= (&shell !~ '\<\%(bash\>\|4[nN][tT]\|\<zsh\)\>\%(\.exe\)\=$')
-else
- let s:trytcl= 1
-endif
-if s:trytcl
- let s:tclpath= fnameescape(expand("<sfile>:p:h")."/tcl.vim")
- if !filereadable(s:tclpath)
-  for s:tclpath in split(globpath(&rtp,"syntax/tcl.vim"),"\n")
-   if filereadable(fnameescape(s:tclpath))
-    let s:tclpath= fnameescape(s:tclpath)
-    break
-   endif
-  endfor
- endif
- if (g:vimsyn_embed =~ 't' && has("tcl")) && filereadable(s:tclpath)
-  unlet! b:current_syntax
-  exe "syn include @vimTclScript ".s:tclpath
-  if exists("g:vimsyn_folding") && g:vimsyn_folding =~ 't'
-   syn region vimTclRegion fold matchgroup=vimScriptDelim start=+tc[l]\=\s*<<\s*\z(.*\)$+ end=+^\z1$+	contains=@vimTclScript
-   syn region vimTclRegion fold matchgroup=vimScriptDelim start=+tc[l]\=\s*<<\s*$+ end=+\.$+	contains=@vimTclScript
-  else
-   syn region vimTclRegion matchgroup=vimScriptDelim start=+tc[l]\=\s*<<\s*\z(.*\)$+ end=+^\z1$+	contains=@vimTclScript
-   syn region vimTclRegion matchgroup=vimScriptDelim start=+tc[l]\=\s*<<\s*$+ end=+\.$+		contains=@vimTclScript
+let s:tclpath= fnameescape(expand("<sfile>:p:h")."/tcl.vim")
+if !filereadable(s:tclpath)
+ for s:tclpath in split(globpath(&rtp,"syntax/tcl.vim"),"\n")
+  if filereadable(fnameescape(s:tclpath))
+   let s:tclpath= fnameescape(s:tclpath)
+   break
   endif
-  syn cluster vimFuncBodyList	add=vimTclScript
+ endfor
+endif
+if (g:vimsyn_embed =~ 't') && filereadable(s:tclpath)
+ unlet! b:current_syntax
+ exe "syn include @vimTclScript ".s:tclpath
+ if exists("g:vimsyn_folding") && g:vimsyn_folding =~ 't'
+  syn region vimTclRegion fold matchgroup=vimScriptDelim start=+tc[l]\=\s*<<\s*\z(.*\)$+ end=+^\z1$+	contains=@vimTclScript
+  syn region vimTclRegion fold matchgroup=vimScriptDelim start=+tc[l]\=\s*<<\s*$+ end=+\.$+	contains=@vimTclScript
  else
-  syn region vimEmbedError start=+tc[l]\=\s*<<\s*\z(.*\)$+ end=+^\z1$+
-  syn region vimEmbedError start=+tc[l]\=\s*<<\s*$+ end=+\.$+
+  syn region vimTclRegion matchgroup=vimScriptDelim start=+tc[l]\=\s*<<\s*\z(.*\)$+ end=+^\z1$+	contains=@vimTclScript
+  syn region vimTclRegion matchgroup=vimScriptDelim start=+tc[l]\=\s*<<\s*$+ end=+\.$+		contains=@vimTclScript
  endif
- unlet s:tclpath
+ syn cluster vimFuncBodyList	add=vimTclScript
 else
  syn region vimEmbedError start=+tc[l]\=\s*<<\s*\z(.*\)$+ end=+^\z1$+
  syn region vimEmbedError start=+tc[l]\=\s*<<\s*$+ end=+\.$+
 endif
-unlet s:trytcl
+unlet s:tclpath
 
 " [-- mzscheme --] {{{3
 let s:mzschemepath= fnameescape(expand("<sfile>:p:h")."/scheme.vim")
diff --git a/runtime/syntax/yaml.vim b/runtime/syntax/yaml.vim
index 1e54aff..073dbf7 100644
--- a/runtime/syntax/yaml.vim
+++ b/runtime/syntax/yaml.vim
@@ -108,9 +108,10 @@
 syn match yamlFlowMappingMerge /<<\ze\s*:/ contained nextgroup=yamlKeyValueDelimiter
 
 syn match yamlBlockCollectionItemStart '^\s*\zs-\%(\s\+-\)*\s' nextgroup=yamlBlockMappingKey,yamlBlockMappingMerge
-execute 'syn match yamlBlockMappingKey /^\s*\zs'.s:ns_plain_out.'\ze\s*:\%(\s\|$\)/ '.
+" Use the old regexp engine, the NFA engine doesn't like all the \@ items.
+execute 'syn match yamlBlockMappingKey /\%#=1^\s*\zs'.s:ns_plain_out.'\ze\s*:\%(\s\|$\)/ '.
             \'nextgroup=yamlKeyValueDelimiter'
-execute 'syn match yamlBlockMappingKey /\s*\zs'.s:ns_plain_out.'\ze\s*:\%(\s\|$\)/ contained '.
+execute 'syn match yamlBlockMappingKey /\%#=1\s*\zs'.s:ns_plain_out.'\ze\s*:\%(\s\|$\)/ contained '.
             \'nextgroup=yamlKeyValueDelimiter'
 syn match yamlBlockMappingMerge /^\s*\zs<<\ze:\%(\s\|$\)/ nextgroup=yamlKeyValueDelimiter
 syn match yamlBlockMappingMerge /<<\ze\s*:\%(\s\|$\)/ nextgroup=yamlKeyValueDelimiter contained