Implemented features:
- knapp for random oppgave
- Riktig/Feil svar popup
- Published/Created dato på oppgaver - mkr
Merge branch 'mkr'

Conflicts:
	client/views/problems/problems.coffee
	server/populate_db.coffee
	server/publications.coffee
Merge branch 'master' of https://github.com/markuskr/programming-ladder into markuskr-master

* 'master' of https://github.com/markuskr/programming-ladder:
  Implemented features: - knapp for random oppgave - Riktig/Feil svar popup - Published/Created dato på oppgaver - mkr

Conflicts:
	client/css/programming-ladder.less
	client/views/problems/problems.coffee