Updated runtime files, language files and translations.
diff --git a/runtime/doc/options.txt b/runtime/doc/options.txt
index 63ac16d..98f22dd 100644
--- a/runtime/doc/options.txt
+++ b/runtime/doc/options.txt
@@ -1,4 +1,4 @@
-*options.txt* For Vim version 7.3. Last change: 2013 Apr 27
+*options.txt* For Vim version 7.3. Last change: 2013 May 17
VIM REFERENCE MANUAL by Bram Moolenaar
@@ -5516,6 +5516,19 @@
matches will be highlighted. This is used to avoid that Vim hangs
when using a very complicated pattern.
+ *'regexpengine''* *'re'*
+'regexpengine' 're' number (default 0)
+ global
+ {not in Vi}
+ This selects the default regexp engine. |two-engines|
+ The possible values are:
+ 0 automatic selection
+ 1 old engine
+ 2 NFA engine
+ Note that when using the NFA engine and the pattern contains something
+ that is not supported the pattern will not match. This is only useful
+ for debugging the regexp engine.
+
*'relativenumber'* *'rnu'* *'norelativenumber'* *'nornu'*
'relativenumber' 'rnu' boolean (default off)
local to window