adding stream partial
added username at the top of the idea UI.
Merge branch 'master' into C4_Hesham_36_IdeaStream
#88, infinite scrolling
#88, added documentation
.
Removed sausage.js plugin and finished the IdeaStream UI #36.
Merge branch 'master' into C4_Gezeery_#52_view_user_profile

Conflicts:
	Idearator/Gemfile
	Idearator/Gemfile.lock
Added UML #88
Merge branch 'C4_Hesham_36_IdeaStream' into C4_Gezeery_#52_view_user_profile

Conflicts:
	Idearator/Gemfile
	Idearator/Gemfile.lock
	Idearator/app/models/idea.rb
	Idearator/lib/tasks/populate.rake
Issue #52, Fix guest user profile view

This commit fixed the guest view of the user profile. The idea
stream is now implemented, and a new button has been added to allow
the user to be redirected to the new idea path.
Issue #52, edit UML
Issue #52, edit old documentation
Merge branch 'C4_Hesham_87_Edit_User_Profile' into C4_Gezeery_#52_view_user_profile

Conflicts:
	Idearator/Gemfile.lock
	Idearator/app/controllers/users_controller.rb
	Idearator/app/views/users/show.html.erb
Issue #52, edit documentation again
Issue #52, add user image in view.
Issue #52, edit users controller and add my profile link in navigation bar

Edits in the users controller were made because they were caused by the
commit that is before that.
Issue #52, add tests
merged with C4_Gezeery_#52_View_User_Profile