factored out timeslotcontroller and timeslotservice, introduced drop down menu for my profile, messages can be sent for apartment ads
RoomMates added

Sara forced me to push bullshit commits in order that she can continue with work ;)
Merge branch 'master' of github.com:ese-unibe-ch/ese2014-team8
messages, manage visits, and layout update
Merge branch 'master' of https://github.com/ese-unibe-ch/ese2014-team8

Conflicts:
	src/main/java/org/sample/model/ShApartment.java
timeslots and messages now also for shared apartment
EditAd bug fixed
RommMates in AdView know