Add tagbar support for JavaScript.
Enhance for code convention.

* Fix - Removes comment highlight that makes invisible.
* Add - Removes tailing spaces.
* Add - Replaces tabs with spaces.
* Add - Highlights characters over 80.
Apply .vimrc setting immediately after saving.
Create HTML skeleton when the extension is *.html.
Add vim-matchit plugin.
Add JSLint support.
Add alignment support.