added initial trending algorithm
modified trends_controller
add documentation
added UI
added test data script for votes and adjusted trends_controller
added tests #221
finished trending algorithm
changed default photo
merged with the latest master, #221
Issue #39, fix sending notification for vote according to the new relations
Merge branch 'C3_dayna161193_#220_PopoverIdea' into C4_Hesham_Trending_Ideas
merged with C3_dayna161193_PopoverIdea
fixed documentation and tests, removed extra generated files #221
Issue #39 ,Modify doumentation
Issue #39, Add documentation
Issue #39, Add documentation
Issue #39, Fix link to username
Merge branch 'master' into C3_Marwa_39_SubmitEditIdea
adjusted indendation , #221
fixed indentation , #221