CAL-41 push declaration of the class in the constructor method, to avoid prototyping
CAL-176 open popup for event details link
CAL-176 able to close popup for details link and invittation link
CAL-197 fix conflict on UIDateTimePicker.js and merge master into intranet-homepage
Merge branch 'feature/intranet-homepage' of https://github.com/exodev/calendar into feature/intranet-homepage
Merge branch 'feature/intranet-homepage'
Merge branch 'master' into feature/activity-type