invitation 1
iteration 2
now puts IDs into the hidden field selected_enquiries
Merge branch 'master' into Invitation

Conflicts:
	Skeleton/src/main/webapp/pages/template/header.jsp
little debug
header problem solved
changes in the DB connections
Now showing events in calendar, possibility to select users invite and show state
Creating Notification for Invitation
corrected invitationDaoTest
Notification for user, when he is invited. invitation accept / decline. delete invitation in calendar
Fixed notification bug.
Merge branch 'Invitation'

Conflicts:
	Skeleton/src/main/java/org/sample/controller/PostController.java
	Skeleton/src/main/java/org/sample/controller/service/SampleService.java
	Skeleton/src/main/java/org/sample/controller/service/SampleServiceImpl.java