Adding SimplePush Server 0.10.0
Adding 0.10.1 WAR file
Adding updated SimplePush Server 0.10.0

- The previous addition of SimplePush Server 0.10.0 can be removed when
  rebasing with master.
AGPUSH-504 Adding snapshot and restore hooks for upgrading the cartridge.
AGPUSH-504 Updating the post_restore function for SimplePush 0.10.0 since the "token-key" attribute has been renamed to "password".