Add vim configuration installations

I just built vim 7.4a from SOURCE (mercurial) on OS X and it's working
swimmingly. Documenting options here for future-me.

Note that I `brew uninstall python`d so that it would use system python,
otherwise YCM breaks. Also virtualenvs are better.
Update YCM to HEAD

For Vim 7.4a support

* .vim/bundle/YouCompleteMe 972b0a9...ddd0287 (12):
  > Code style fixes
  > Fix duplicate entries in filename completion
  > Typo fix in docs
  > Merge pull request #424 from beards/master
  > Adding OnVimLeave support to Completer class
  > Merge pull request #427 from viszu/master
  > Encouraging the user to read the docs even more
  > Minor formatting changes to docs
  > Don't call SyntasticCheck if not syntastic checker
  > Option to set min length for suggestions
  > FAQ item for UltiSnips key conflict
  > g:ycm_semantic_triggers now only adds new triggers
Add Android NDK settings