Merge pull request #170 from mashir43/master

vala: Update to 0.25.2
gtk3: update to version 3.13.8
Merge pull request #171 from nacho/wip/gtk3.13.8

gtk3: update to version 3.13.8
gobject-introspection: update to version 1.41.91
Merge pull request #172 from nacho/wip/g-i-1.41.91

gobject-introspection: update to version 1.41.91
gdk-pixbuf: update to version 2.31.1
pygobject: update to version 3.13.91
vala: Cleanup.
Merge pull request #173 from nacho/wip/gdk-pixbuf2.31.1

gdk-pixbuf: update to version 2.31.1
Merge pull request #174 from nacho/wip/pygobject3.13.91

pygobject: update to version 3.13.91
gobject-introspection: Fix importing python modules.
libunistring: Update to 0.9.4
qtcreator: Resync with gerrit + clang link fix
gdk-pixbuf: properly export the symbols

Before we were mandatorily removing some of the gdip modules. This is
bad since they are actually pulled in when using the included loaders
and anyway they are only used as fallback modules for when the ones
using the free software libraries are not available.
gdk-pixbuf: give priority to the open source library modules instead of gdip
Merge pull request #175 from nacho/wip/gdk-pixbuf-export

gdk-pixbuf: properly export the symbols
inkscape: Rebuild after imagemagick upgrade.
codelite-git: WIP.
Merge pull request #176 from mashir43/master

gimp: Update to 2.8.14
Merge pull request #1 from Alexpux/master

Merge branch 'master'