Added vim-commentary and updarted the plugins.

commentary:
Comment stuff out.  Use `gcc` to comment out a line (takes a count),
`gc` to comment out the target of a motion (for example, `gcap` to
comment out a paragraph), and `gc` in visual mode to comment out the
selection.  That's it.

sources_non_forked/vim-snippets/UltiSnips/tex.snippets

@@ -74,7 +74,7 @@ ${0}
 endsnippet
 
 snippet sec "Section" b
-\section{${1:section name}} 
+\section{${1:section name}}
 \label{sec:${2:${1/\\\w+\{(.*?)\}|\\(.)|(\w+)|([^\w\\]+)/(?4:_:\L$1$2$3\E)/g}}}
 
 ${0}