When a task is edited, 'modified_by' field is not cleared any more. Fix for issue 692.

Changed checkCanMakeRequestToGroup to use Logic instance instead of module. This method now also directly queries for the keyname of the group. Also some whitespace fixes in the access module.

Update Google App Engine from 1.2.5 to 1.2.7 in thirdparty folder.

Disabled GHOP module. Oopsie in ra223fff4cc.

Added logic paramters to two access checks. This is necessary because the GHOP module needs the same checks with other logics.

Set the Mentors list to the user that is suggesting a Task.

Fixed access check and seed for Task Suggest page. Fixes Issue 694. Reviewed by: Lennard de Rijk

Removed query wether or not the current user was ever an org admin. This is because it makes no sense to not show the approve this task button if th is task was suggested by an org admin. The suggest page is there for a reason fo staging tasks anyway. Also added TODO to let the mentor's suggest page redirect to the normal edit pag e after a task has been suggested. This is more natural since the task lists als o redirects to this page for unapproved tasks and the normal edit page also has the capability to hide fields determined by the user's access.

Fixed the TimelineConversionUpdate to also update the GSoCProgram.

Use scope_path for updating Documents since scope was never properly set.