Differential Revision: https://phabricator.kde.org/D7823

Even if they are in attic and not actually in use, drop a number of
modules (and old tests) that it does not make sense to keep carry
further:

- FindAlsa.cmake, config-alsa.h.cmake:
cmake has been providing a better FindALSA for long time

- FindEigen.cmake, FindEigen2.cmake & test:
Eigen v1 & v2 are deprecated and unmaintained for years

- FindGStreamer.cmake:
gstreamer-0.10 is long dead upstream

- FindKdcraw.cmake, FindKDE4Workspace.cmake, FindKdeMultimedia.cmake,
  FindKDevPlatform.cmake, FindKexiv2.cmake, FindKipi.cmake,
  FindLibAttica.cmake, FindLibKonq.cmake:
modules for KDE 4 libraries -- they are provided already by kdelibs 4.x,
and the frameworks versions of those libraries provide cmake config
files already

- FindKNepomuk.cmake, FindKonto.cmake, FindNepomuk.cmake,
  NepomukAddOntologyClasses.cmake, NepomukMacros.cmake:
Nepomuk stuff, which is long dead

- FindKopete.cmake:
the Frameworks version of Kopete is not released yet, so it'd rather
provide own cmake config files

- FindKorundum.cmake:
Korudum is dead upstream, and so is Ruby 1.8

- FindLCMS.cmake & test:
LCMS 1 is dead for many years already

- FindMusicBrainz.cmake:
libmusicbrainz v2 is long dead, and the web service API it uses was
dismantled years ago

- FindOpenEXR.cmake & test:
ECM already provides an improved and polished version of this module

- FindPolkitQt.cmake:
polkit-qt is long dead, replaced by polkit-qt-1

- FindPopplerQt4.cmake:
ECM 5.19+ already provides a better FindPoppler module

- FindSharedDesktopOntologies.cmake:
dead upstream, but also used to provide cmake config files already

- tests for Blitz, Flex, LibXslt:
their modules are not even in attic

REVIEW: 126414

Since PyQt 4.10, PyQt.pyqtconfig is deprecated and not available unless
PyQt is built using the old configure script.

PyKDE4 itself has recently been adjusted to mimic PyQt itself and only
install its pykdeconfig module if pyqtconfig is present. Additionally,
information such as SIP flags and the directory where PyKDE's SIP files
are installed are now also provided in the
PyKDE4.kdecore.PYKDE_CONFIGURATION dict.

This commit completely rewrites FindPyKDE4.py to make it look like
FindPyQt.cmake after commit a7e4743: most of the information used by
FindPyKDE4.cmake is fetched from PyKDE4.kdecore, and we first try to
obtain the SIP flags and directory from pykdeconfig and, if it fails, we
use PYKDE_CONFIGURATION.

Furthermore, FindPyKDE4.py now only prints the variables that are
actually consumed by FindPyKDE4.cmake -- it is not possible to obtain
all the data provided by pykdeconfig in PYKDE_CONFIGURATION. We've also
stopped reading and setting PYKDE4_VERSION_TAG, since PyKDE4 stopped
setting a KDE tag in 2008 (and its value was 3_92_0 at the time).

(Forwardport kdelibs 4d29cf8)

sys.prefix should be used instead of sys.platform

Forward port of kdelibs commit 8b1abe25dcf243cd2cdf23dff7272aca921292ae

PYQT4_SIP_DIR is a directory, not a file.

Forwardport of kdelibs/37f31f9ce39569a1096e5a04b6679a91e6ae18fe.

The version committed in 0912b24 is slightly different from the one in
kdelibs -- besides a few differences in the comments, there is an IF()
check that was always evaluating to false.

REVIEW:119339