Project should be moving over to spring, as this is the 'blessed'
approach and is part of suspenders. Leaving these functions around adds
yet another layer of indirection to consider when trying to run these
commands:
* function wrapper
* binstub
* rbenv shim
* actual binary
With arguments, g acts like git.
Without arguments, it runs `git status`.
* Source functions/* after loading ZSH completion so `compdef` is available to g
alias
* Use a regular alias to make `s` short for `rspec`
* Use an `rspec` shell function to route to zeus when appropriate
* Removes confusion from `s` working differently than `rspec`
* Removes need to use a special alias to get zeus working