change slim submodule url to https protocol.
Use a new version of ZoomWin

Thanks @johnhampton

refs #500
Merge pull request #502 from landtax/master

Slim submodule causes bad installation.
Add Erlang lang plugin
Reorganise .gitmodules
Support The Silver Searcher (ag) as ack replacement

https://github.com/ggreer/the_silver_searcher#vim
Update fugitive plugin.
Merge pull request #506 from vassilevsky/silver-searcher-support

Support The Silver Searcher (ag) as ack replacement
Merge pull request #507 from rdlugosz/update_fugitive_to_cf3fe781dd

Update fugitive plugin.
Update the submodules
rm vimclojure bc it's deprecated, add vim-clojure-static
with https
Merge pull request #509 from Quantisan/master

replace langs/clojure vimclojure with new vim-clojure-static
Remove dumb vim color sampler pack