Separate platform-dependent sources
Add resource file to cmake
Fix dependencies handing on mingw
Split cmake/make builds, add mingw build
Fix .travis.yml
Add CMAKE_SYSTEM_NAME for windows cross-compilation
Specify RC compiler
Provide required libraries for mingw32 build
Merge branch 'mingw'

Conflicts:
	wcm/CMakeLists.txt
Disable mingw build on travis until it is fixed