[2.2.0]
 * Let GoogleApi20 supports OOB
 * Updated Imgur API to OAuth2
 * force not to instantiate stateless APIs. Use provided singletons
 * reduce OAuthService abstraction for OAuth1 and OAuth2. Separate OAuth(1|2)Services

[2.1.0]
 * add Pinterest API

[2.0.1]
 * small code enhancements

[2.0]
 * merge back SubScribe fork to the ScribeJava
 
for previous changes see
v1-changelog - changelog for 1.x version
v2pre-changelog - changelog for SubScribe fork

