Add .gitignore
fix(server.plugin.zsh): server not exiting correctly from keyboard interrupt

The browser was not opening http://localhost:${port} because it was being called
after the python server was instantiated. Moving it above the python server call
seemed to have fixed this issue.
feat(git-psyrendust): add new gindex alias

Added gindex alias which clears the cache, and rebuilds it.
feat(psyrendust-auto-update): add auto update plugin

Added auto update plugin for this repo. Follows the oh-my-zsh auto update
convention.
- psyrendust-auto-update.plugin.zsh
- check_for_upgrade.sh
- upgrade.sh
feat(grunt-autocomplete): add grunt tab completion to zsh

Ported over GruntJS's bash tab completion script to zsh.
docs(README.md): update documentation with new plugins

Added new plugins to documentation and updated release history.
fix(psyrendust-auto-update): fix path issue for .psyrendust-update

Moved the location of .psyrendust-update to the users home folder.
Merge branch 'master' of github.com:psyrendust/oh-my-zsh-psyrendust