try to implement ListView --> see FIXME in ListView.java
 little change in Class MyDataAdapter
Merge branch 'list_view' of https://github.com/kakadude/hochzeitsapp into list_view

Conflicts:
	list_view/gen/com/example/list_view/R.java
	list_view/res/layout/chosen_element.xml
	list_view/src/com/example/list_view/ListView.java
	list_view/src/com/example/list_view/MyData.java
	list_view/src/com/example/list_view/MyDataAdapter.java