All header files should refer only to qt5 or kf5; I used full path to have a better
view of the package containing the single header; at compile time both include flags
should be given.

Marked as TODO all header files from KDE4LibsSupport, many of this classes have
deprecated methods that should be changed with the new from Qt (KUrl -> Qurl and so on).

For a better readability, I ordered header files in system, then qt, then kde.