Show no partner message when going to chat or profile without a mentor/mentee yet.
Disable chat button on event details when there's no partner.
Removed duplicate getPartnerID()
Merge branch 'develop' into jing-develop

* develop:
  Last minute fix of notifications.
  update notifications when clicked on from the system tray.
  Minor changes before promotional video recording.

Conflicts:
	app/src/main/java/org/chicktech/chicktech/fragments/EventDetailsFragment.java
Merge pull request #149 from thehelpsf/jing-develop

Handle case when there is no partner #104