use the latest requirejs
use CreateJS from cdn. Simplify Bower dependencies

- add almond to Bower
- remove all CreateJS components & jQuery from Bower
- add carousel on main screen, still wip
include lib/utils to jshint targets
modify the bootstrap carousel

- removing all unused pause & timer functionalities
- make the code qualified according to jshint standard
update the carousel on the main page

also update the styling for buttons
able to select render mode from main screen

still have problem in storing the last selected
render mode