Added missing super call in DefaultApplier's init
Added missing super call in DefaultApplier's init

Added the missing super() call in the DefaultApplier class
__init__() method, as it was requested.

Change-Id: I58be9671e9635d800d63480043e2e4cd752d45fd
Closes-Bug: #1520524

stackforge/watcher,openstack/watcher,stackforge/watcher,openstack/watcher