Hopefully unbreak (most) run-time parts of KDE4 SDK.
Add TODO for GStreamer Phonon plugin, probably related to crashes of
KNotify and other Phonon users.
Allow KDevPlatform to be detected correctly.
Now that fgs@ added extended headers support to base archivers,
remove GNU Tar requirement from kde4.port.mk.
Polish libqalculate after input from landry@.
Polish wcslib after input from landry@.