cairo: libpng is non optional
ZopeInterface: version bump
Twisted: version bump
tornado: version bump
ipython: major version bump

Remove MathJax installation again. It's supposed to be installed
by the user (nonsense... -.-)
lightdm: Version bump 1.10.0
httpd: version bump to 2.2.27

The Apache guys seem to have picked up the obnoxious habit of
removing older versions of httpd from their distribution page,
so this module is actually broken now with the old version there.
ruby: version bumped to 2.1.1.

Last version released.
Merge branch 'ruby' of https://github.com/Florin65/moonbase-other into httpd
arpack-ng: version bump
octave: major version bump

Now with Qt-GUI
postgresql: version bumped to 9.3.4

Module makeover, fixed pam support and proper systemd integration.
lapack: version bump

Also add check for fortran support
doxygen: version bumped to 1.8.7.
gstreamer: version bumped to 1.2.4.
gst-libav: version bumped to 1.2.4.
gst-plugins-bad-1.0: version bumped to 1.2.4.
gst-plugins-base-1.0: version bumped to 1.2.4.
gst-plugins-good-1.0: version bumped to 1.2.4.
gst-plugins-ugly-1.0: version bumpaed to 1.2.4.