Issue #52, edit view and stylesheet

Added default user photo and link to 'My Profile'in navigation bar.
Edited the view and the stylesheet.
Issue #52, edit code style
Issue #197, add in-place edit
Issue #197, change default edit view
Issue #197, change styles and javascript related to user editing
Issue #197, change edit method in users controller
Issue #197, edit in-place view in user profile view
Merge branch 'master' into C4_Gezeery_#197_edit_user_profile

Conflicts:
	Idearator/app/assets/javascripts/users.js
	Idearator/app/controllers/users_controller.rb
	Idearator/app/views/layouts/_navigation.html.erb
	Idearator/app/views/users/show.html.erb
Issue #197, edit user stylesheet
Issue #197, edit show view and controller method
Issue #197, edit code
Issue #197, remove repeated gem from gemfile and edit populate
Issue #197, add user ideas stream
Merge pull request #198 from DevYah/C4_Gezeery_#197_edit_user_profile

C4 gezeery #197 edit user profile , merageble :D