Provide ability to revert back to the previous version of powerline
Add <leader>gw for :Gwrite in fugitive
Added the branch via bash variable to the git pull command when updating.
Merge pull request #353 from rraub/3.0

Added the branch via bash variable to the git pull command when updating...
Merge pull request #352 from johntyree/Gwrite

Add <leader>gw for :Gwrite in fugitive
Merge pull request #345 from mmikitka/toggle_powerline_version

Provide ability to revert back to the previous version of powerline