BK-1286 Cover manager filter is not working correctly

Problem was with the jQuery selector used in the backbone model for the
filter
BK-1289 Book metadata in the editing interface
BK-1285 Tooltips for covers are not visible
Merge branch 'BK1289' into 2.0
Merge branch 'BK1285' into 2.0
BK-1296 Implement Editing roles in the Book settings interface