Replace KDE_open macro (and others)

[Christian Ehrlicher]

Hi,

now that trunk is open again I would like to renew my suggestion to 
replace KDE_foo macros from kde_file.h with proper functions. As Thiago 
already set I would replace const char* filename with QUrl --> KDE::open 
(const QUrl &filename, ...). This would fix the problems with unicode 
filenames on windows (currently you can't open files with unicode 
characters which are not in the current locale codeset).


Comments?
Christian