zsh: zshenv now loads RVM config for non interactive shells
vim: Configure Tagbar plugin to use ripper-tags with Ruby

The regular ctags program isn't great for ruby.
ripper-tags is a ruby specific alternative that seems to do a better
jobs.
The Tagbar plugin is now configured to use it (but only if it's
installed).
Remove unused plugins
vim: Add CtrlP plugin
vim: Remove FuzzyFinder plugin
zsh: remove bundler plugin
vim: Add Gitv plugin