Merge pull request #252 from Maledictus/master

Win32 installer and some build issues
[Util] Added missing #include <functional>.
[AnHero] Add errno.h include.

Fixes Mac OS X build.
[XSD] Mac doesn't like cross-linking as well.
[LMP] Fixed gstreamer 1.0/gstreamer 0.10 choosing.
[Core] Added Q_COMPILER_AUTO_FUNCTION to clang defines.
[AnHero] Use X11 iff it's available.
[PY] Added missing #include <numeric>.
[PY] Fixed type declarations for ZipWith.
[Core] DBus is available only on Linux.
[Azoth Murm] Added missing #include <functional>.
[LMP] Removed unused function.
[LMP] Fixed std::abs usage.
[Azoth CH] Fixed std::abs ambiguity.
[Glance] Create glance window with Dialog flag, fixes #1257.
[Glance] Smaller resize scale.
Merge branch 'master' of github.com:0xd34df00d/leechcraft
[Core] Proper std::free() usage.
[LHTR] Removed unused parameter.
[Azoth] Don't accept rich text in group send dialog.

Probably fixes #1260.