done with view_my_friends action
changed some variables to match with the migrations
added documentations and organized the associations
fixed some error in friendship model
adding keywords
adding migrations
fixing migrations
test
changes
Merge branch 'migrations' of https://github.com/yousraHazem/Topsoft-14 into C3_S18_As_a_child_I_can_invite_users_to_my_event

mergin migrations
renaming child id