Update gatein-dep to version 1.2.1.CR01-SNAPSHOT. Remove all dependencies from pom.xml, which were moved to gatein dep

Properly close inputStream in OAuthUtils

Simplify test configuration according to GTNPORTAL-2941

Fix configuration of CodecInitializer. Remove unecessary imports

Minor: cleanup

Rename exception ccodes
Initial support for OAuth API implementation

Introduced OAuth SPI. Package refactoring. Added more stuff to OAuth API.

Adapt new changes in GateIn API for OAuth. Add more null checks

Refactor CodecInitializer to ensure that codec is initialized only once

Upgrade to released SSO 1.3.3.CR01 and gatein-dep 1.2.1.CR02-SNAPSHOT to avoid dependency on google-api-services repository

Added javadoc to API implementation classes