Updated indent spacing from two to four.
Added C support plugin to vim-config.

Additionally, updated .vimrc to update vim's Helptags on each startup, just to
make sure they are up-to-date for plugins in use.
Remove C support plugin.

No quite as useful as initially hoped :(
Added UltiSnips support and a base C snippet.

Hope to expand this over time to support improved C source code development.