Update runtime files.

runtime/doc/todo.txt

@@ -1,4 +1,4 @@
-*todo.txt*      For Vim version 7.4.  Last change: 2015 Sep 25
+*todo.txt*      For Vim version 7.4.  Last change: 2015 Oct 13
 
 
 		  VIM REFERENCE MANUAL	  by Bram Moolenaar
@@ -72,6 +72,8 @@ Regexp problems:
   col and vcol when moving to another line.
 - this doesn't work: "syntax match ErrorMsg /.\%9l\%>20c\&\%<28c/".  Leaving
   out the \& works.  Seems any column check after \& fails.
+- The pattern "\1" with the old engine gives E65, with the new engine it
+  matches the empty string. (Dominique Pelle, 2015 Oct 2)
 
 Still using freed memory after using setloclist(). (lcd, 2014 Jul 23)
 More info Jul 24.  Not clear why.
@@ -101,7 +103,8 @@ Same for src/xxd/Make_cyg.mak
 
 Python: ":py raw_input('prompt')" doesn't work. (Manu Hack)
 
-2html update. (Ben Fritz, 2015 Sep 9)
+Patch to add debug backtrace. (Alberto Fanjul, 2015 Sep 27)
+Asked for :frame command.
 
 MS-Windows: When editing a file with a leading space, writing it uses the
 wrong name. (Aram, 2014 Nov 7)  Vim 7.4.
@@ -112,8 +115,6 @@ specifically?  First try with the parens, then without.
 Value returned by virtcol() changes depending on how lines wrap.  This is
 inconsistent with the documentation.
 
-Add bzl filetype support. (David Barnett, 2015 Aug 11)
-
 When complete() first argument is before where insert started and 'backspace'
 is Vi compatible, the completion fails. (Hirohito Higashi, 2015 Feb 19)
 
@@ -126,15 +127,21 @@ Goes away when disabling the swap file. (might1, Feb 16)
 MS-Windows: Crash opening very long file name starting with "\\".
 (Christian Brock, 2012 Jun 29)
 
-The OptionSet autocommand event is not always triggered. (Rick Howe, 2015 Sep
-24): setwinvar(), :diffthis, :diffoff.
+If libiconv.dll is not found search for libiconv2.dll. (Yasuhiro Matsumoto,
+2015 Oct 7)
 
-The argument for "-S" is not taken literally, the ":so" command expands
-wildcards.  Add a ":nowild" command modifier?  (ZyX, 2015 March 4)
+The OptionSet autocommand event is not always triggered. (Rick Howe, 2015 Sep
+24): :diffthis, :diffoff.
 
 ":set all&" still does not handle all side effects.  Centralize handling side
 effects for when set by the user, on init and when reset to default.
 
+":tag" does not jump to the right entry of a :tselect. (James Speros, 2015 Oct
+9)
+
+The argument for "-S" is not taken literally, the ":so" command expands
+wildcards.  Add a ":nowild" command modifier?  (ZyX, 2015 March 4)
+
 Proposal to make options.txt easier to read. (Arnaud Decara, 2015 Aug 5)
 Update Aug 14.