initial implementation for User Password Credentials Grant
Add initial data
Initialize the db for tests
Fix tests
Fix failed tests after adding password grant support
Add CrossOriginFilter to web.xml
	Merge remote-tracking branch 'salamworld/master'

Conflicts:
	apis-authorization-server-war/pom.xml
Merge pull request #2 from ashihaby/master

General Fixes
Return username with token info
Merge pull request #3 from ashihaby/master

Return username with token info
Implement Token Revoking
Merge pull request #4 from ashihaby/master

Implement Token Revoking
Merge remote-tracking branch 'salamworld/master'

Conflicts:
	apis-authorization-server-war/src/main/resources/db/migration/hsqldb_content/V1__auth-server-admin.sql