hide filter name when no box with filter name remaining
Merge branch 'master' of heroku.com:wireframe-prototyping
mv taskType.py to enum.py
add UIType in enum.py (EX. Usage UIType.IMAGE)
integrate subskeleton task to mturk flow
Merge branch 'master' of heroku.com:wireframe-prototyping
use lowercase check
prevent bad boxes(incompleted data) in database to be drawn
passing label argument into mturkindex & subskeleton task
test