Implements DB api for user cameras
Displaying user cameras
Layout for user cameras
Staring development dialog for camera management
ArrayAdapter for user_cameras
Merge branch 'master' into iss3
Template for camera edit dialog
Merge branch 'master' into iss3

Conflicts:
	res/values/strings.xml
Camera editor dialog layout
CameraEditorDialog implementation
First draft version with many defects
First working prototype
Issue #3