Profiling patch

STATE_TRANSITIONS dictionary values are changed to strings. Our assumption that Python's functions and methods are first class members and using the method names directly as dictionary values doesn't seem to work. So we are using method names as strings in STATE_TRANSITIONS dictionary and getting the method object using getattr.

Added templatetags for use in the GHOP module. Reviewed by: to-be-reviewed

Bulk added templates for GHOPOrganization views. Reviewed by: to-be-reviewed

Bulk add templates regarding GHOPProgram Views. Reviewed by: to-be-reviewed

Bulk add templates regarding Task Views. Reviewed by: to-be-reviewed

Added Task for sending out emails to subscribed users about a Comment. Reviewed by: Lennard de Rijk

Added method to send out mail about a Task update. Reviewed by: Lennard de Rijk

Added template for mails regarding Task updates. Reviewed by: Lennard de Rijk

Added several methods to the Task Logic module. These include the automatic tranistion methods. The methods for running updates , that for instance place comments, in a datastore transition to keep the Task synced with the comments. And a rudimentary way of updating the Tasks' history. Reviewed by: Lennard de Rijk

Removed scope and scope_path properties from GHOPComment since it is ID based.

Added reference to GHOPProgram entity for Work Submissions.

Added GHOP Form cleaning module. Reviewed by: Lennard de Rijk

Added GHOPTaskSubscription Logic module. Reviewed by: Lennard de Rijk