Modified setings of lightline to match the README in the lightline project Added indication of paste mode, added functions instead of code in call of components, added git branch glyph, added path to file being edited

(cherry picked from commit 35c32f386a3c8e812b5cef05463a9cc11c5afc0f)
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
Merge branch 'master' of https://github.com/skwp/dotfiles

* 'master' of https://github.com/skwp/dotfiles:
  Update aliases.zsh
  Make tmux split exactly 50%
  Update vim enhancements README with Lightline
Merge branch 'master' into jby

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