Woodpecker: Minor fix in CMakeLists.  ${QTKOAUTH_LIBRARY} ->  ${QTKOAUTH_LIBRARIES}
Win32: Add build dir to ignores.
Overall: Use CMakeDependentOption.cmake to disable non compatible plugins on Win32.
Merge remote-tracking branch 'origin/master' into mingw

Conflicts:
	src/CMakeLists.txt
	src/plugins/azoth/CMakeLists.txt
	src/plugins/lmp/CMakeLists.txt
	src/plugins/musiczombie/CMakeLists.txt
Vrooby: Disable UNIX only plugins on Win32
Overall: Enable SB2 and Vrooby on Win32. Now them works. Minor changes.
SB2: Use WITH_X11 only on Linux and BSD platforms
Merge branch 'mingw' of https://github.com/DJm00n/leechcraft into DJm00n-mingw

Conflicts:
	.gitignore
	src/CMakeLists.txt

I've re-enabled Monocle (it's platform-independent, just with some additional
nasty deps) and Azoth Vader (it's also platform-independent and even without
dependencies, just with variadics).