ObjC autoreleasepool fixes (seems to be needed on MacOSX 10.6)
xcode cleanup
display error if there is no successfull startup
xcode: link guiCocoaCommon against Foundation to resolve ARC/ObjC
related errors
check for pyExec
python
update python. fix "Symbol not found:
_objc_retainAutoreleaseReturnValue" when loading _guiCocoaCommon.dylib