some changes in the layout
added first testfragment
added a container which contains the fragments
added more fragments to the tab hosts onlineactivity
changes reated to the fragment implementation
changes related to the fragments
added backward and forward scroll to the connection list
scrolling added to the connection list (onlineMode)
added favorits button to connection_layout
readded favoriten to the application
added some lines of codes for the usabilit of SASAbus, added some icons
removed some layoutrelated details which are not implemented