[PPP-3166] Locking most UserRoleDao operations to Administrators only.
Update MetadataRepositoryLifecycleManagerTest.java

PPP-3167 - Securing Admin only REST Service
Update FileResourceTest.java

PPP-3167 - securing admin only REST services
Update RepositoryResourceTest.java

PPP-3167 securing admin only REST services
Update MetadataRepositoryLifecycleManagerTest.java

PPP-3167 - Securing Admin only REST services
Merge pull request #859 from pentaho-tband/CM-463

CM-463 GA Final Documentation JDBC Help
Reviewed by Rowell
Merge pull request #860 from rmansoor/master

PPP-3167 Securing Admin only REST services
CM-463 QA Final Documentation #454