Wrapper around the jQuery AutoSuggest Plugin.

Added an autoSuggest wrapper in oae.api.util. It exposes 2 functions:
* setup($element, options)
      Allows you to attach auto suggestions to a text field.

 * getSelections($container)
      Allows you retrieve the selected data.

All the jQuery options are still configurable and the wrapper will only set a
property if it was not defined by the caller.

How to use the wrapper can be seen in the `setpermissions` widget.