Only sync / deliver a PtiffImageStore if it's local to the machine
Add API methods to sync / deliver all PTiffImageStores
Add buttons to sync and deliver all image stores to admin 2 interface
Merge branch 'deliver_button'

* deliver_button:
  Add buttons to sync and deliver all image stores to admin 2 interface
  Add API methods to sync / deliver all PTiffImageStores
  Only sync / deliver a PtiffImageStore if it's local to the machine