Added GHOP Student Logic.
Added GHOP Student Logic.

Note that on creation of a GHOPStudent a GAE Task is created to update the taskswith the new GHOPStudent reference. This is due to the fact that we allow users to claim task without being a registered Student.

Reviewed by: Lennard de Rijk

MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging,MatthewWilkes/mw4068-packaging