Fix question answers ordering

fixes ordering of answers for questions with 10 or more answers
Proper min/max answers validation
Merge branch 'develop'
Counting min/max choices per party fix

Limiting questions is currently applied in party selections and not per
party group. The fix changes the counting validation in order to check
limits based on party selections count against party min/max options.
enhance group counting, make it optional
Fix html results
fix queue naming
fix blank party counting

including pdf/csv fix by kpap
restructure sections, add voting stages
some discussion added
center authors
Admin view should handle more than 9 questions

fix regular expression to handle question index with more than
one digit
reworking discussion parts
more bibliographical material
some reorganising, multi-question tallying
fix old commented-out sanity test
compact and enhance user voting overview
more discussion and figure
add boxplot
editorial changes