Add UserPreference to User upon creation of user
Add UserPreference table with recent_projects_count and related controller/actions edit update
refactored user_preferences implementation and tests
Connect user_preferences#recent_projects_count to dashboard view
Remove debugger line
Refine tests for user#recent_projects method
Merge branch 'user_preferences' of github.com:TimePulse/TimePulse

Conflicts:
	Gemfile.lock
Trying to sort out migrations. Better, not quite fixed though
Merge branch 'connect_user_prefs_to_dashboard_view_65' of github.com:TimePulse/TimePulse

Conflicts:
	app/models/user.rb
	app/models/work_unit.rb
Fix strong params for missing user preferences sections