Revamp gem

Good Morning @janjiss!

As we discussed I've cleaned up the gem to only include the vimeo and youtube embed code. I've also removed as many of the external dependencies (activesupport, haml) as possible.

Look over what I did and let me know what you think. If you'd like to preserve the original gem perhaps it would be best to fork the project and publish it under a new name. 

Talk soon!

Jordan :panda_face: