Merge pull request #149 from crazymaster/master

Fixed snippets.
- Improved neosnippet initialization.
- Improved s:check_initialize().
- Improved lua snippet.
Added clojure snippets.
- Added neocomplete source.
- Improved snippets_complete source.
- Fixed function name.
- Fixed neosnippet source.
- Supported context_filetype.
- Fixed get_filetype().
- Fixed neosnippet source.
Improved javascript snippet
Add scheme snippet.
Improved go snippet.
changelog
- Deleted compatibility features.
- Optimized neocomplete source.
- Improved documentation.
- Fixed error in neosnippet source.