Updated runtime files.
diff --git a/runtime/syntax/sh.vim b/runtime/syntax/sh.vim
index c51bd9a..711971e 100644
--- a/runtime/syntax/sh.vim
+++ b/runtime/syntax/sh.vim
@@ -2,15 +2,15 @@
 " Language:		shell (sh) Korn shell (ksh) bash (sh)
 " Maintainer:		Charles E. Campbell  <NdrOchipS@PcampbellAfamily.Mbiz>
 " Previous Maintainer:	Lennart Schultz <Lennart.Schultz@ecmwf.int>
-" Last Change:		May 02, 2016
-" Version:		151
+" Last Change:		Jun 10, 2016
+" Version:		152
 " URL:		http://www.drchip.org/astronaut/vim/index.html#SYNTAX_SH
 " For options and settings, please use:      :help ft-sh-syntax
 " This file includes many ideas from Eric Brunet (eric.brunet@ens.fr)
 
 " For version 5.x: Clear all syntax items {{{1
 " For version 6.x: Quit when a syntax file was already loaded
-if version < 600
+if v:version < 600
   syntax clear
 elseif exists("b:current_syntax")
   finish
@@ -173,7 +173,7 @@
 
  " Touch: {{{1
  " =====
- syn match shTouch	'\<touch\>[^;#]*'	skipwhite nextgroup=shTouchList contains=shTouchCmd
+ syn match shTouch	'\<touch\>[^;#]*'	skipwhite nextgroup=shComment contains=shTouchCmd
  syn match shTouchCmd	'\<touch\>'		contained
 endif
 
@@ -333,9 +333,10 @@
 "================================
 syn match   shNumber	"\<\d\+\>#\="
 syn match   shNumber	"-\=\.\=\d\+\>#\="
-syn match   shCtrlSeq	"\\\d\d\d\|\\[abcfnrtv0]"		contained
+syn match   shCtrlSeq	"\\\d\d\d\|\\[abcfnrtv0]"			contained
 if exists("b:is_bash")
- syn match   shSpecial	"\\\o\o\o\|\\x\x\x\|\\c[^"]\|\\[abefnrtv]"	contained
+ syn match   shSpecial	"[^\\]\(\\\\\)*\zs\\\o\o\o\|\\x\x\x\|\\c[^"]\|\\[abefnrtv]"	contained
+ syn match   shSpecial	"^\(\\\\\)*\zs\\\o\o\o\|\\x\x\x\|\\c[^"]\|\\[abefnrtv]"	contained
 endif
 if exists("b:is_bash")
  syn region  shExSingleQuote	matchgroup=shQuote start=+\$'+ skip=+\\\\\|\\.+ end=+'+	contains=shStringSpecial,shSpecial
@@ -346,11 +347,13 @@
 endif
 syn region  shSingleQuote	matchgroup=shQuote start=+'+ end=+'+		contains=@Spell
 syn region  shDoubleQuote	matchgroup=shQuote start=+\%(\%(\\\\\)*\\\)\@<!"+ skip=+\\"+ end=+"+	contains=@shDblQuoteList,shStringSpecial,@Spell
-syn match   shStringSpecial	"[^[:print:] \t]"		contained
-syn match   shStringSpecial	"\%(\\\\\)*\\[\\"'`$()#]"
-syn match   shSpecial	"[^\\]\zs\%(\\\\\)*\\[\\"'`$()#]"
+syn match   shStringSpecial	"[^[:print:] \t]"			contained
+syn match   shStringSpecial	"[^\\]\zs\%(\\\\\)*\\[\\"'`$()#]"
+syn match   shSpecial	"[^\\]\zs\%(\\\\\)*\\[\\"'`$()#]"		nextgroup=shBkslshSnglQuote,shBkslshDblQuote
 syn match   shSpecial	"^\%(\\\\\)*\\[\\"'`$()#]"
-syn match   shMoreSpecial	"\%(\\\\\)*\\[\\"'`$()#]"		nextgroup=shMoreSpecial contained
+syn match   shMoreSpecial	"[^\\]\zs\%(\\\\\)*\\[\\"'`$()#]"		nextgroup=shMoreSpecial contained
+syn region  shBkslshSnglQuote	contained	matchgroup=shQuote start=+'+ end=+'+	contains=@Spell
+syn region  shBkslshDblQuote	contained	matchgroup=shQuote start=+"+ skip=+\\"+ end=+"+	contains=@shDblQuoteList,shStringSpecial,@Spell
 
 " Comments: {{{1
 "==========
@@ -363,31 +366,21 @@
 
 " Here Documents: {{{1
 " =========================================
-if version < 600
- syn region shHereDoc matchgroup=shHereDoc01 start="<<\s*\**END[a-zA-Z_0-9]*\**" 	matchgroup=shHereDoc01 end="^END[a-zA-Z_0-9]*$"	contains=@shDblQuoteList
- syn region shHereDoc matchgroup=shHereDoc02 start="<<-\s*\**END[a-zA-Z_0-9]*\**"	matchgroup=shHereDoc02 end="^\s*END[a-zA-Z_0-9]*$"	contains=@shDblQuoteList
- syn region shHereDoc matchgroup=shHereDoc03 start="<<\s*\**EOF\**"		matchgroup=shHereDoc03 end="^EOF$"	contains=@shDblQuoteList
- syn region shHereDoc matchgroup=shHereDoc04 start="<<-\s*\**EOF\**"		matchgroup=shHereDoc04 end="^\s*EOF$"	contains=@shDblQuoteList
- syn region shHereDoc matchgroup=shHereDoc05 start="<<\s*\**\.\**"		matchgroup=shHereDoc05 end="^\.$"	contains=@shDblQuoteList
- syn region shHereDoc matchgroup=shHereDoc06 start="<<-\s*\**\.\**"		matchgroup=shHereDoc06 end="^\s*\.$"	contains=@shDblQuoteList
-
-else
- ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc07 start="<<\s*\\\=\z([^ \t|]\+\)"		matchgroup=shHereDoc07 end="^\z1\s*$"	contains=@shDblQuoteList
- ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc08 start="<<\s*\"\z([^ \t|]\+\)\""		matchgroup=shHereDoc08 end="^\z1\s*$"
- ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc09 start="<<-\s*\z([^ \t|]\+\)"		matchgroup=shHereDoc09 end="^\s*\z1\s*$"	contains=@shDblQuoteList
- ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc10 start="<<-\s*'\z([^ \t|]\+\)'"		matchgroup=shHereDoc10 end="^\s*\z1\s*$"
- ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc11 start="<<\s*'\z([^ \t|]\+\)'"		matchgroup=shHereDoc11 end="^\z1\s*$"
- ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc12 start="<<-\s*\"\z([^ \t|]\+\)\""		matchgroup=shHereDoc12 end="^\s*\z1\s*$"
- ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc13 start="<<\s*\\\_$\_s*\z([^ \t|]\+\)"		matchgroup=shHereDoc13 end="^\z1\s*$"           contains=@shDblQuoteList
- ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc14 start="<<\s*\\\_$\_s*'\z([^ \t|]\+\)'"	matchgroup=shHereDoc14 end="^\z1\s*$"
- ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc15 start="<<\s*\\\_$\_s*\"\z([^ \t|]\+\)\""	matchgroup=shHereDoc15 end="^\z1\s*$"
- ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc16 start="<<-\s*\\\_$\_s*\z([^ \t|]\+\)"	matchgroup=shHereDoc16 end="^\s*\z1\s*$"	
- ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc17 start="<<-\s*\\\_$\_s*\\\z([^ \t|]\+\)"	matchgroup=shHereDoc17 end="^\s*\z1\s*$"	
- ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc18 start="<<-\s*\\\_$\_s*'\z([^ \t|]\+\)'"	matchgroup=shHereDoc18 end="^\s*\z1\s*$"
- ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc19 start="<<-\s*\\\_$\_s*\"\z([^ \t|]\+\)\""	matchgroup=shHereDoc19 end="^\s*\z1\s*$"
- ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc20 start="<<\\\z([^ \t|]\+\)"		matchgroup=shHereDoc20 end="^\z1\s*$"
- ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc21 start="<<-\s*\\\z([^ \t|]\+\)"		matchgroup=shHereDoc21 end="^\s*\z1\s*$"
-endif
+ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc01 start="<<\s*\\\=\z([^ \t|]\+\)"		matchgroup=shHereDoc01 end="^\z1\s*$"	contains=@shDblQuoteList
+ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc02 start="<<\s*\"\z([^ \t|]\+\)\""		matchgroup=shHereDoc02 end="^\z1\s*$"
+ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc03 start="<<-\s*\z([^ \t|]\+\)"		matchgroup=shHereDoc03 end="^\s*\z1\s*$"	contains=@shDblQuoteList
+ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc04 start="<<-\s*'\z([^ \t|]\+\)'"		matchgroup=shHereDoc04 end="^\s*\z1\s*$"
+ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc05 start="<<\s*'\z([^ \t|]\+\)'"		matchgroup=shHereDoc05 end="^\z1\s*$"
+ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc06 start="<<-\s*\"\z([^ \t|]\+\)\""		matchgroup=shHereDoc06 end="^\s*\z1\s*$"
+ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc07 start="<<\s*\\\_$\_s*\z([^ \t|]\+\)"		matchgroup=shHereDoc07 end="^\z1\s*$"           contains=@shDblQuoteList
+ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc08 start="<<\s*\\\_$\_s*'\z([^ \t|]\+\)'"	matchgroup=shHereDoc08 end="^\z1\s*$"
+ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc09 start="<<\s*\\\_$\_s*\"\z([^ \t|]\+\)\""	matchgroup=shHereDoc09 end="^\z1\s*$"
+ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc10 start="<<-\s*\\\_$\_s*\z([^ \t|]\+\)"		matchgroup=shHereDoc10 end="^\s*\z1\s*$"	
+ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc11 start="<<-\s*\\\_$\_s*\\\z([^ \t|]\+\)"	matchgroup=shHereDoc11 end="^\s*\z1\s*$"	
+ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc12 start="<<-\s*\\\_$\_s*'\z([^ \t|]\+\)'"	matchgroup=shHereDoc12 end="^\s*\z1\s*$"
+ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc13 start="<<-\s*\\\_$\_s*\"\z([^ \t|]\+\)\""	matchgroup=shHereDoc13 end="^\s*\z1\s*$"
+ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc14 start="<<\\\z([^ \t|]\+\)"		matchgroup=shHereDoc14 end="^\z1\s*$"
+ShFoldHereDoc syn region shHereDoc matchgroup=shHereDoc15 start="<<-\s*\\\z([^ \t|]\+\)"		matchgroup=shHereDoc15 end="^\s*\z1\s*$"
 
 " Here Strings: {{{1
 " =============
@@ -702,12 +695,6 @@
 hi def link shHereDoc13		shRedir
 hi def link shHereDoc14		shRedir
 hi def link shHereDoc15		shRedir
-hi def link shHereDoc16		shRedir
-hi def link shHereDoc17		shRedir
-hi def link shHereDoc18		shRedir
-hi def link shHereDoc19		shRedir
-hi def link shHereDoc20		shRedir
-hi def link shHereDoc21		shRedir
 
 " Delete shell folding commands {{{1
 " =============================
diff --git a/runtime/syntax/tex.vim b/runtime/syntax/tex.vim
index 9d91402..6557421 100644
--- a/runtime/syntax/tex.vim
+++ b/runtime/syntax/tex.vim
@@ -1,8 +1,8 @@
 " Vim syntax file
 " Language:	TeX
 " Maintainer:	Charles E. Campbell <NdrchipO@ScampbellPfamily.AbizM>
-" Last Change:	May 02, 2016
-" Version:	95
+" Last Change:	Jun 17, 2016
+" Version:	97
 " URL:		http://www.drchip.org/astronaut/vim/index.html#SYNTAX_TEX
 "
 " Notes: {{{1
@@ -83,15 +83,16 @@
  let s:tex_conceal= g:tex_conceal
 endif
 if !exists("g:tex_superscripts")
- let s:tex_superscripts= "[0-9a-zA-W.,:;+-<>/()=]"
+ let s:tex_superscripts= '[0-9a-zA-W.,:;+-<>/()=]'
 else
  let s:tex_superscripts= g:tex_superscripts
 endif
 if !exists("g:tex_subscripts")
- let s:tex_subscripts= "[0-9aehijklmnoprstuvx,+-/().]"
+ let s:tex_subscripts= '[0-9aehijklmnoprstuvx,+-/().]'
 else
  let s:tex_subscripts= g:tex_subscripts
 endif
+echomsg "s:tex_subscripts=".s:tex_subscripts
 
 " Determine whether or not to use "*.sty" mode {{{1
 " The user may override the normal determination by setting
@@ -206,16 +207,16 @@
 " Try to flag {} and () mismatches: {{{1
 if s:tex_fast =~# 'm'
   if !s:tex_no_error
-   syn region texMatcher		matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"		transparent contains=@texMatchGroup,texError
-   syn region texMatcher		matchgroup=Delimiter start="\["				end="]"		transparent contains=@texMatchGroup,texError,@NoSpell
+   syn region texMatcher	matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"			transparent contains=@texMatchGroup,texError
+   syn region texMatcher	matchgroup=Delimiter start="\["				end="]"			transparent contains=@texMatchGroup,texError,@NoSpell
   else
-   syn region texMatcher		matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"		transparent contains=@texMatchGroup
-   syn region texMatcher		matchgroup=Delimiter start="\["				end="]"		transparent contains=@texMatchGroup
+   syn region texMatcher	matchgroup=Delimiter start="{" skip="\\\\\|\\[{}]"	end="}"			transparent contains=@texMatchGroup
+   syn region texMatcher	matchgroup=Delimiter start="\["				end="]"			transparent contains=@texMatchGroup
   endif
   if !s:tex_nospell
-   syn region texParen		start="("						end=")"		transparent contains=@texMatchGroup,@Spell
+   syn region texParen		start="("	end=")"								transparent contains=@texMatchGroup,@Spell
   else
-   syn region texParen		start="("						end=")"		transparent contains=@texMatchGroup
+   syn region texParen		start="("	end=")"								transparent contains=@texMatchGroup
   endif
 endif
 if !s:tex_no_error
@@ -266,7 +267,7 @@
 syn match  texBeginEnd		"\\begin\>\|\\end\>" nextgroup=texBeginEndName
 if s:tex_fast =~# 'm'
   syn region texBeginEndName		matchgroup=Delimiter	start="{"		end="}"	contained	nextgroup=texBeginEndModifier	contains=texComment
-  syn region texBeginEndModifier	matchgroup=Delimiter	start="\["		end="]"	contained	contains=texComment,@NoSpell
+  syn region texBeginEndModifier	matchgroup=Delimiter	start="\["		end="]"	contained	contains=texComment,@texMathZones,@NoSpell
 endif
 
 " \documentclass, \documentstyle, \usepackage: {{{1
@@ -1136,9 +1137,21 @@
   call s:SuperSub('texSubscript','_','9','₉')
   call s:SuperSub('texSubscript','_','a','ₐ')
   call s:SuperSub('texSubscript','_','e','ₑ')
+  call s:SuperSub('texSubscript','_','h','ₕ')
   call s:SuperSub('texSubscript','_','i','ᵢ')
+  call s:SuperSub('texSubscript','_','j','ⱼ')
+  call s:SuperSub('texSubscript','_','k','ₖ')
+  call s:SuperSub('texSubscript','_','l','ₗ')
+  call s:SuperSub('texSubscript','_','m','ₘ')
+  call s:SuperSub('texSubscript','_','n','ₙ')
   call s:SuperSub('texSubscript','_','o','ₒ')
+  call s:SuperSub('texSubscript','_','p','ₚ')
+  call s:SuperSub('texSubscript','_','r','ᵣ')
+  call s:SuperSub('texSubscript','_','s','ₛ')
+  call s:SuperSub('texSubscript','_','t','ₜ')
   call s:SuperSub('texSubscript','_','u','ᵤ')
+  call s:SuperSub('texSubscript','_','v','ᵥ')
+  call s:SuperSub('texSubscript','_','x','ₓ')
   call s:SuperSub('texSubscript','_',',','︐')
   call s:SuperSub('texSubscript','_','+','₊')
   call s:SuperSub('texSubscript','_','-','₋')
@@ -1154,6 +1167,7 @@
   call s:SuperSub('texSubscript','_','\\phi\>'  ,'ᵩ')
   call s:SuperSub('texSubscript','_','\\gamma\>','ᵧ')
   call s:SuperSub('texSubscript','_','\\chi\>'  ,'ᵪ')
+
   delfun s:SuperSub
  endif