implementation of empty list view
Merge branch 'master' of github.com:jritter/VoterApp

Conflicts:
	VoterApp/src/ch/bfh/evoting/voterapp/PollDetailActivity.java
Merge branch 'master' of github.com:jritter/VoterApp

Conflicts:
	VoterApp/AndroidManifest.xml
	VoterApp/res/values/strings.xml
fixed merging problem
Fixed problem when scrolling up in listview with result chart fragment