Description of problem:

If user has 'favorited' a bunch of resources, a number that would take up more than the available space inside the Favorite resources portlet - it is not readily apparent that all of them are listed in the portlet, since there is no scrollbar.

Version-Release number of selected component (if applicable):


How reproducible:


Steps to Reproduce:
1.  Add a bunch of resources (probably 5+) to your favorites
2.  Go back to dashboard; add the favorite resources portlet if it is not there already
3.  View results.
  
Actual results:
* Portlets scroll somewhat unnoticed off the bottom of the portlet.  The portlet can scroll (say, with a mousewheel) but there is no evident scrollbar.

Expected results:
Scrollbar when appropriate

Additional info:

There's actually a whole lot of whitespace around each of these that can probably be reduced, but the scrollbar should be there regardless