Fix document filter selection sentance removers

Due to markup changes the cross buttons to remove selections were no
longer working. The breaking changes were adding opt-groups in the
topics dropdown and removing the multiple value possiblities.

https://www.pivotaltracker.com/story/show/53076049
Fix casing in table selection

This fixes 7d2dc7862eb43d38c069d04072bb721eaddca6a5.