Merge branch 'release/0.1.2' into develop
Catch AttributeError when 'answer_option' does not exist
Added competition ID and Title, check for None answer options
Check for empty answer text
add test case to test export
Merge branch 'develop' of git://github.com/jurginius/jmbo-competition into develop
don't pass export test if 'None' in fields
use '' instead of None in csv export
document version
Merge branch 'release/0.1.2.1'