Update gemcutter:import:process rake task to call Pusher#process
Update gemcutter:import:process rake task to call Pusher#process

The task is out of sync with the Pusher class

rubygems/rubygems.org-backup,square/rubygems.org,square/rubygems.org,rubygems/rubygems.org-backup,square/rubygems.org,rubygems/rubygems.org-backup