Updated client to support API version 2.
Moved API version specifics into separate config. class.
Refactored to reduce some duplication (and organize by endpoint)
Updated spec to cover v1 **and** v2.
Updated Rails rake task to support API version.
Set header in api_version as v1 require x-www-form-urlencoded
Split out some shared stuff to shared_hipchat, different test for v1 and v2 API, use webmock more
Adding V2 info to Readme
bump version to 1.0.0 for API v2
Add COVERALLS