sendbutton
sendFile sends file to same directory application opened in
Changed Recorder, Player, PhysicalLayer and DataLinkLayer to singleton.
Applayer is  now singleton
Merge branch 'qt' of https://github.com/Projektgruppe3-RobTek/DTMFMagix into qt

Conflicts:
	dtmfmagix.cpp
	dtmfmagix.h
threadfixing in qt
sending process bar fixed
Changed bug in qt
bugfix
Fixed bug in QT-GUI
reset progress bar