Update vim enhancements README with Lightline
Make tmux split exactly 50%
Update aliases.zsh

Adding :q to exit your shell
Merge pull request #569 from adamenger/patch-1

Add :q to exit shell
Merge pull request #565 from ianks/tmux-split

Make tmux split exactly 50%
Merge pull request #564 from timstott/update_documentation

Update vim enhancements README with Lightline
 This is a combination of 2 commits.

updated readme

update git files, added settings to zsh

update the skwp prompt

vim configuration changes

adding atom, bundler, power line settings

adding extra vim plugin and settings

removed brew task

added separate rake task for update

moved settings to vimrc

clean up git aliases

fix update rake task

removed vim bundles and settings I don't use
updating the vim bundle settings