Extraction of API module with following packages:
- org.apache.shindig.api.auth - SecurityToken
- org.apache.shindig.api.json - JsonSerializer
- org.apache.shindig.api.time - TimeSource
- org.apache.shindig.api.io - ResoureLoader

Update tests to mockito in few places. Some of tests are failing or have compilation issues. Remove tests jar dependencies in place of shindig-test module.
Fold server-resources and server-dependencies into server module.