ffmpeg: Update to 2.4.3
curl: Update to 7.39.0
gdal package: xerces-c package is needed, mysql client is not currently used
Merge pull request #336 from alex85k/gdal3

gdal package: xerces-c package is needed
emacs: Fix for the `emacs-24` branch
Merge pull request #337 from Haroogan/master

emacs: Fix for the `emacs-24` branch
conemu: Updates and fixes
qt5-static: Fixes for cmake

Remove the previous attempts, add a better one, still not
perfect.

TARGET_PROPERTY:WIN32_EXECUTABLE isn't working for some
reason so we use CMAKE_HOST_WIN32 instead.
poppler: Update to 0.28.1
fltk: Update to 1.3.3
gstreamer: Update to 1.4.4
Merge pull request #339 from Haroogan/master

conemu: Updates and fixes
boost: support 'debug' option
Merge pull request #340 from oscarfv/boost-debug

boost: support 'debug' option
KDEF5: kconfig + common fixes
qt5-static: Fixes for cmake

This time for real. -static is passed in as INTERFACE_LINK_LIBRARIES
because nothing else works, and this is the sort of thing that cmake
considers acceptable practice:

http://www.cmake.org/cmake/help/v3.0/command/target_link_libraries.html

"Specify libraries or flags to use when linking a given target"

.. because what's in a name after all? flags/libraries, tomato/tomato.