Updates to select picker classes (progress).
Fixed up select pickers functionality a bit.
Added auto closing for select picker when it should collapse on mouseleave event.  Also added width auto to select picker and scrollable dropdown component scss/css.  Corrected event callbacks for animation complete and animation reverese on scrollable dropdown and select picker.  Added refresh method to select picker (just calls `refreshOptions` method of self).  Fixed the suggested height generation method(s) to be more precise/accurate.
Further cleanup on scrollable drop down (removed unused methods and comments as well as removed some unneeded code).
fooling around with `getWrapperElmPaddingBottom` (trying to get it right).
Updated min-width for jui-scrollable-drop-down.scss for a better look also updated the way jui select picker was calculating it's suggested content and wrapper heights for animation (values have to be passed in for it's animations).
Merge pull request #11 from elycruz/select-picker-updates

Select picker updates