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
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
adjusted indendation , #221
fixed indentation , #221
added UML , #221
merged with latest master
Merge branch 'C4_LinaBasheer_#92_Graph4' of https://github.com/DevYah/coolsoft-13 into C4_Hesham_Trending_Ideas
fixed UML , #221
Merge branch 'master' into C4_Hesham_Trending_Ideas

Conflicts:
	Idearator/app/views/ideas/_popover.html.erb
fixed UML  #221