working on #39

Created xml file app_view to show the app when selected
#39 made java class file and some strings
#42. Created the 'add device' screen, and added link to it in the action overflow. 'Add device' screen is not finished.
#42. Fixed merging issues with branc 'issue39'
Added link to application view in action overflow for testing purposes. This will be removed when done testing.
#39 changed text fields from input text to textview
Merge branch 'issue39' into iss42