Issue #252 opgelost.
onnodige comments verwijderd.
Constraints to Json
Merge pull request #253 from nicocarraggi/nicodev

Nicodev
fix
Merge branch 'master' of https://github.com/CalZoneVUB/CalZone into TimFrondEnd
Merge branch 'master' of https://github.com/CalZoneVUB/CalZone

# By Timbo925 (2) and nicocarraggi (2)
# Via Timbo925
* 'master' of https://github.com/CalZoneVUB/CalZone:
  fix
  Constraints to Json
  onnodige comments verwijderd.
  Issue #252 opgelost.