All pictures moved to ./bitmaps
Implemented removing Cauer from Filter Topology QComboBox when Butterworth/Chebyshev/Bessel function is selected
Added QGroupBox'es to main window
Qucsactivefilter interface optimised for laptops
Magic numbers replaced by Enums and removed debug printing
Added helpdialog and MenuBar similar to other Qucs-Tools
Added helpdialog.h and helpdialog.cpp to Makefile.am
Merge pull request #14 from ra3xdh/ra3xdh-activefilter

Ra3xdh activefilter