creates ayadn gem

:warning: Depends on #2 :warning:

It's awesome to be able to `gem install ayadn` and then just run `ayadn` without any extra ceremony on the commandline. :dancers:

Since the gem belongs under your (future) RubyGems account, you'll need to generate and push the gem up.

You'll need a RubyGems account. It's easy, just follow the steps in [this tutorial](http://guides.rubygems.org/make-your-own-gem/) starting from "Publishing your gem out to RubyGems.org only takes one command, provided that you have an account on the site."

Then:

- `gem build ayadn.gemspec` to build the gem file
- `gem push ayadn-0.0.0.gem`

This is the first time I threw together a gem, so I bet there's a far easier way to do this (Jeweler, maybe?), but this seems to work.

I did this after I asked jextadore to `gem install ayadn` and it bombed out with a "no such gem" error. :smile_cat: