Specify path for g:colorv_cache_fav.

Shouldn't have been a priority, but latest updates spew messages if it isn't
set.
No longer using gsession.
No longer using detectindent.
Added vim-vala repository.

Also includes genie support.
Remove old vim-vala repository.
Added vim-indent-object for nice Python manipulations.
Added clam repository for fancy shell usage.
Dropped textile repository.

Frankly, I'd rather just choose to ignore files using textile.
Added dwm repo for fancy window mangling.
Added vim-characterize for super `ga`.
Added vim-sleuth for style sniffing.
Removed doctest-syntax repo.
Removed indentgenie repository.
Removed projtags repository.

Haven't found it as useful as I hoped :/
Added custom error formats for Vala files.
No longer require .org filetype settings.
No longer require Arduino filetype settings.
Removed unused AutoClose settings.
Removed unused nerdcommenter settings.
Removed unused vim-orgmode settings.