build for CDNJS
move Bower and CDNJS configs into build folder
tweak grunt clean:cdn command
added module to add support custom timeslots functionality
Issue 1701: Feature Request: custom timeslots
http://code.google.com/p/fullcalendar/issues/detail?id=1701&sort=-id&colspec=ID%20Type%20Status%20Milestone%20Summary%20Stars