Add support for granting and revoking DB access to Cloud Databases.
Merge branch 'master' into db_grant_access
Handle host specification on database users
create_user, grant_user_access, and revoke_user_access now support host access restrictions
Oops. Added that initializer just so I could pry inside of it. Don't need it now!
Oops another pry call to remove...
Merge pull request #3101 from elight/db_grant_access

Db grant access