Remove code, reorganize, and add better CTags

Files were congested with unnecessary code from deleted vundle bundles.
Remove redundant code for better practice and faster vim startup. Add
exuberant CTags for better YouCompleteMe completion. Add script and
required configuration for .ctag file management. Include configuration
for git commit message styling.

* Remove redundant code from deleted bundles in (.vimrc)
* Move configuration code in (.vundlerc) to (.vimrc) for consistency
* Include proper gitcommit filetype handling in (.vimrc)
* Include CTags script link
* Add CTags shell script