[Vim] Spelling additions
[Vim] Change GUI font
[Vim] Add Transmit.app integration
[Vim] Remove unnecessary divider from doc template
[Vim] Revamp status line (again)
[Vim] Refactor Preserve()
[Vim] Add informative description of .vimrc.local
[Vim] Update plug-ins

I accidentally created merge commits for some of the git submodules.
This corrects that issue.
[Vim] Add Rake task for updating plug-ins