CFY-1375 handeled failure from _verify_task_registered (by fail handler if no handler was decalred on the task)
CFY-1375 falke8
CFY-1375 deleted debug constant (was added for manual tests)
Merge pull request #66 from cloudify-cosmo/CFY-1375-VERIFY-TASK-CAUSES-UNINSTALL-FAILURE

Cfy 1375 verify task causes uninstall failure