User customizable label on !ProgressBar, fixes #4322 !strict.  It's unclear why we used to set visibility:hidden on the progress bar label, rather than just inserting an &nbsp.   (Need to do something though so the !ProgressBar doesn't have 0 height.)
User customizable label on !ProgressBar, fixes #4322 !strict.  It's unclear why we used to set visibility:hidden on the progress bar label, rather than just inserting an &nbsp.   (Need to do something though so the !ProgressBar doesn't have 0 height.)

git-svn-id: 674a2d6b1e32e53f607eb824547723f32280967e@22522 560b804f-0ae3-0310-86f3-f6aa0a117693

tkrugg/deliteful,EAlexRojas/deliteful,brunano21/deliteful,brunano21/deliteful,cjolif/deliteful,harbalk/deliteful,cjolif/deliteful,EAlexRojas/deliteful,harbalk/deliteful,tkrugg/deliteful,kitsonk/deliteful,kitsonk/deliteful