Js snippets + snippet mods.

* Add a few javascript snippets
* Add different 'mainn' snippet for cpp files. Don't need 'void' as an
argument.
* 'jq' now inserts jquery 1.8.3 instead of 1.7.2 in html files
* Add snippet 'phile' for some template file handling syntax in C.

Should really be using this plugin more.