Replaced Qt5::Gui dependency with Qt5::Widgets.
Replaced Qt5::Gui dependency with Qt5::Widgets.

rkhlebnikov/CTK,AndreasFetzer/CTK,sankhesh/CTK,danielknorr/CTK,Heather/CTK,151706061/CTK,jcfr/CTK,Heather/CTK,laurennlam/CTK,fedorov/CTK,mehrtash/CTK,danielknorr/CTK,rkhlebnikov/CTK,ddao/CTK,sankhesh/CTK,jcfr/CTK,SINTEFMedtek/CTK,fedorov/CTK,mehrtash/CTK,msmolens/CTK,mehrtash/CTK,danielknorr/CTK,CJGoch/CTK,sankhesh/CTK,AndreasFetzer/CTK,CJGoch/CTK,mehrtash/CTK,commontk/CTK,AndreasFetzer/CTK,ddao/CTK,SINTEFMedtek/CTK,naucoin/CTK,AndreasFetzer/CTK,151706061/CTK,Sardge/CTK,Heather/CTK,Sardge/CTK,commontk/CTK,Heather/CTK,msmolens/CTK,sankhesh/CTK,151706061/CTK,naucoin/CTK,rkhlebnikov/CTK,commontk/CTK,naucoin/CTK,151706061/CTK,danielknorr/CTK,ddao/CTK,commontk/CTK,fedorov/CTK,laurennlam/CTK,naucoin/CTK,msmolens/CTK,151706061/CTK,ddao/CTK,CJGoch/CTK,Sardge/CTK,jcfr/CTK,Sardge/CTK,SINTEFMedtek/CTK,SINTEFMedtek/CTK,CJGoch/CTK,laurennlam/CTK,laurennlam/CTK,msmolens/CTK,jcfr/CTK,fedorov/CTK,CJGoch/CTK,jcfr/CTK,rkhlebnikov/CTK,SINTEFMedtek/CTK