Enable Pending Tasks on beta dash // Course Info prettifying 

Updated version of #1356 

@flowerhack and @singingwolfboy can you please take another look? The event handlers weren't firing properly but I've managed to fix that now (yay).

Addresses https://edx-wiki.atlassian.net/browse/LMS-1242 and https://edx-wiki.atlassian.net/browse/LMS-1291