Implements first specs in teamsnap_rb using Rspec, Webmock, and VCR.
Since essentially all of teamsnap_rb's objects and methods are
dynamically generated, the idea here is to use two cassette's, one from
the root collection and one from a more fleshed out collection to
simulate the full "implementation" of teamsnap_rb's objects.
Merge pull request #24 from teamsnap/specs

Adds specs to the collection class using the root collection.