Merge pull request #647 from abhinavc/master

Now generating 3 variants per version for each question
Merge pull request #648 from abhinavc/master

Sundry changes for compiling abridged worksheets as part of indie offering
Merge pull request #649 from abhinavc/master

First questions on set theory
[cron-git-commit] @ 17.40
Merge pull request #650 from abhinavc/master

2 new questions on set theory
Elaborated the solution
Resolved conflicts
Conflicts:
	vault/1/oqh/0yxcy/question.tex