Remove dependency on jQuery UI, other minor fixes

Remove dependenyc on jQuery UI, other minor fixes

Fixed couple of issues.

Bump up version

Added railDDraggable option; slimscrolling event. Scrollbar size reca…

…lculation for dynamic content.

Added support for nested scroll areas

Added missing wheelStep example

Avoid a jitter when *very slowly* mousewheeling down

Fixed jQuery UI reference for compatibility with jQuery 1.9.0

jquery plugins page testing