first attempt to draw a chart in the result app
Merge branch 'master' of github.com:jritter/VotingLib

Conflicts:
	VotingLib/res/layout/activity_display_result.xml
	VotingLib/src/ch/bfh/evoting/votinglib/DisplayResultActivity.java
Merge branch 'master' of github.com:jritter/VotingLib
Implemented pie chart in result activity