Update Giant Robots blog post URLs in README
Only try to install vundle if it's not installed

Prevents error on re-running ./install.sh:

    fatal: destination path '~/.vim/bundle/vundle' already exists and is
    not an empty directory.

https://github.com/thoughtbot/dotfiles/issues/195
skip linking LICENSE file during install
Use rcm instead of ./install.sh

The rcm suite is designed to replace the `./install.sh` script found in
this and many other dotfiles repos across GitHub. By using rcm users can
combine multiple dotfiles repos, tag dotfiles, have host-specific
dotfiles, and other powerful features.

This commit removes `install.sh`, updates the README, adds a post-up
hook that vundles the vim bundles, and adds a `rcrc` configuration that
ignores `README.md` and `LICENSE` and sets the dotfiles directory to
just `dotfiles`.
Always update from vundle

Previously, the after-up hook would only do a `:BundleInstall` when
installing vundle for the first time. This is inconsistent with the
pre-rcm process, and also less convenient.
Cleanup zshrc

* remove duplicates with zlogin
* order by functions first, then bindings, then exports
* lowercase `setopt` arguments for consistency with `setopt` output
Use Brewfile
Correctly link to rcm in README
Use thoughtbot/rcm in Brewfile
Updates dotfiles to have .local files as needed

* in favor of the old way of #DO NOT EDIT BELOW THIS LINE, dot files
* were changed to have local config files - updates local dotfiles ot
* match this preferred pattern
Adds git plugin back for git branch auto completions
updates source path
Color and alias tweaks
Adds rspec mappings
Adding aliases
Small tweaks
Add rspec configuration
Adds Ag
Change from RVM to RBENV
Updates alias'