Once and for all squashed the problem with conflicts with jQueryUI library.

NOTE that this will ALWAYS include jQueryUI on your page, so YiiBooster will become Twitter Bootstrap + jQuery UI widget collection for sure.
Cleaned up and moved to separate package `bootstrap.picker` library.
Fixed an error in pickercolumn toggling script and made both `TbJsonPickerColumn` and `TbPickerColumn` use the new picker script package.