Updated runtime files.

runtime/ftplugin/scheme.vim

@@ -1,13 +1,32 @@
 " Vim filetype plugin
 " Language:      Scheme
 " Maintainer:    Sergey Khorev <sergey.khorev@gmail.com>
-" URL:		 http://iamphet.nm.ru/vim
+" URL:		 http://sites.google.com/site/khorser/opensource/vim
 " Original author:    Dorai Sitaram <ds26@gte.com>
 " Original URL:		 http://www.ccs.neu.edu/~dorai/vimplugins/vimplugins.html
-" Last Change:   Nov 22, 2004
+" Last Change:   Jan 9, 2012
 
-runtime! ftplugin/lisp.vim ftplugin/lisp_*.vim ftplugin/lisp/*.vim
+" Only do this when not done yet for this buffer
+if exists("b:did_ftplugin")
+  finish
+endif
 
+" Don't load another plugin for this buffer
+let b:did_ftplugin = 1
+
+" Copy-paste from ftplugin/lisp.vim
+setl comments=:;
+setl define=^\\s*(def\\k*
+setl formatoptions-=t
+setl iskeyword+=+,-,*,/,%,<,=,>,:,$,?,!,@-@,94
+setl lisp
+
+" make comments behaviour like in c.vim
+" e.g. insertion of ;;; and ;; on normal "O" or "o" when staying in comment
+setl comments^=:;;;,:;;,sr:#\|,mb:\|,ex:\|#
+setl formatoptions+=croql
+
+" Scheme-specific settings
 if exists("b:is_mzscheme") || exists("is_mzscheme")
     " improve indenting
     setl iskeyword+=#,%,^