Added CMakeLists.txt for Cereal and applied a couple of compiler warning fixes for Cereal.
Handled CMake 3.0's renaming of Clang to AppleClang on OS X.
Merge branch 'MAID-245_network_label' into MAID-59_cereal_cmake
Added SKIP_RETURN_CODE to tests properties.
Removed fake "__disabled__" target for disabled tests.
Moved Cereal to a new location.
Disabled GCC Release build warning for Cereal.
Merge remote-tracking branch 'upstream/next' into MAID-59_cereal_cmake
Changed CMake minimum version back to 2.8.12.2 and removed SFML modules.
Merge remote-tracking branch 'upstream/next' into MAID-59_cereal_cmake
Merge remote-tracking branch 'origin/next' into MAID-59_cereal_cmake
Merge remote-tracking branch 'upstream/next' into MAID-59_cereal_cmake

Conflicts:
	cmake_modules/exports.cmake
Fixed merge conflict.
Merge pull request #154 from Fraser999/MAID-59_cereal_cmake

MAID-59: Added CMakeLists.txt for Cereal and applied a couple of compiler warning...