[WDL/Swell] reverted recent merge problem in swell-wnd.mm
[iPlug] fixed one warning and const char vs char regression since last merge
[CMake] Fixed osx build : now vst plugins build properly, still have to resolve AU plugin .rsrc resource automatic generation on osx.
[iPlug] fixed bad override of a virtual method in AutoGUI
[WDL] Fixed annoying unused (padding variables) warnings