Improve zsh global aliases
Merge branch 'master' of github.com:scicalculator/Unity-Shell

* 'master' of github.com:scicalculator/Unity-Shell:
  Remove obsolete installations from remake.py
  Remove pymol installer
  Update tmux-powerline
  Update tmx
  improved unity aliases for gnu utils and tarz and utarz
  Fix bug where unecessary aliases were created in zsh even though env can't unset variables
  Add tmux-powerline configuration files
Change tmux-powerline battery meter to percentage
Change mod_install pip installer directory for editable installs
Rename mod_install.sh to pip-gem.sh
Update vim