adding title to challenge details
changing em to italics (for now)
adding no description fallback text
Merge branch 'develop' of github.com:osmlab/maproulette into develop

# By Serge Wroclawski
# Via Serge Wroclawski
* 'develop' of github.com:osmlab/maproulette:
  Escape quotes for great success

Conflicts:
	maproulette/static/js/maproulette.js
Merge branch 'develop' of github.com:osmlab/maproulette into develop

# By Serge Wroclawski
# Via Serge Wroclawski
* 'develop' of github.com:osmlab/maproulette:
  Removing Showdown. Replacing with Markdown