Session View Implementation continued (prototype).
Images for Session View.
Merge branch 'master' of local repository into Gui2
Pink Images.
Merge remote-tracking branch 'origin/Gui2' into Gui2
added navigation function to start session
Merge remote-tracking branch 'origin/Gui2' into Sprint2/MobileGUI

Conflicts:
	Project Pink/src/main/java/ch/bfh/bti7081/s2013/pink/PatientOverview.java
added some improvements after merge
Added link to session view back and mobilified SessionView. (Which is
bad because the SessionWindow isn't ready yet.)