fixed typo
[BUG #7710] more specific selector
[BUG #7710] minor style tweak
[BUG #7710] removed obsolete demo app
[BUG #7710] fixed page switch animation
[BUG #7710] fallback style for disabled items in non-webkit clients
[BUG #7710] added getIcon method
[BUG #7710] setMenu: allow chaining
[BUG #7710] added Button tests