Code from WFPMapping was moved to akvo-flow-mobile repo

* See: https://github.com/akvo/akvo-flow-mobile
Remove unused Vagrant related files
Update references in README.md
Merge branch 'master' into develop

Conflicts:
	WFPMapping/device/survey/src/com/gallatinsystems/survey/device/activity/SurveyViewActivity.java
	WFPMapping/device/survey/src/com/gallatinsystems/survey/device/view/GeoQuestionView.java
	WFPMapping/device/survey/src/com/gallatinsystems/survey/device/view/QuestionView.java
	WFPMapping/device/survey/src/com/gallatinsystems/survey/device/view/SurveyQuestionTabContentFactory.java