modifying attributes in table photos
adding migrations
fixing brocken migration
adding columns to freindships and notifications
adding poll answer and question
Merge branch 'migrations' of https://github.com/yousraHazem/Topsoft-14 into C3_S18_As_a_child_I_can_invite_users_to_my_event

merge with branch migrations
re-generate event controller
re-generate event controller