separate mac and linux vim keymaping
add linux font install
remove outdated git option
use alt for more mappings
make more mappings use Alt + readme
Update gitignore vim settings

Pulling in updates from Github's global vim gitignore file:  https://github.com/github/gitignore/blob/master/Global/vim.gitignore
Remove deprecations from gemrc

Removed deprecated bulk_threshold-instance method:
http://www.rubydoc.info/github/rubygems/rubygems/Gem/ConfigFile#bulk_threshold-instance_method

--no-ri --no-rdoc is deprecated, use --no-document
Reference: http://guides.rubygems.org/command-reference/
Update to Homebrew app install path.
Make ls/ll aliases linux friendly
status bar shows even on one pane [Fix #538]
Navigate seamlessly between vim and tmux [Fix #526]
Remove vim/.vundles.local.bak from source control
Fixed keybinding conflict introduced as part of #526.