Update CMakeLists.txt

does not build on win32
Merge pull request #248 from erwincoumans/master

 	fix btInMemorySerializer but disable btInMemorySerializer by default
Merge pull request #249 from erwincoumans/master

fix CMakeLists.txt on Mac/Linux when using BUILD_SHARED_LIBS
Merge pull request #241 from xantares/patch-1

Fix removed dir
MSVC-specific function calls wrapped in a MSVC-specific macro instead of a Windows-specific one.
Adding virtual destructor for RenderCallbacks struct
Adding virtual dtors to classes in btSoftBody
Merge pull request #268 from kwatts/render_callback_virtual_dtor

Thanks for the help! Adding virtual destructor for RenderCallbacks struct
Adding destructor to GraphicsPhysicsBridge
Virtual dtor for CommonParameterInterface
Merge pull request #271 from erwincoumans/master

 btHingeConstraint to set/get ERP, refactor gfx backends (work-in-progress)
Merge pull request #260 from sippeangelo/issue-260

Microsoft compiler wrongly assumed on Windows platform
Merge pull request #269 from kwatts/render_callback_virtual_dtor

Render callback virtual dtor
Merge pull request #273 from erwincoumans/master

COLLADA .dae importer for URDF, Basic Coordinate System demo
Merge pull request #275 from erwincoumans/master

fix build
Update README.md
Update README.md
Update README.md
Merge pull request #278 from dbasilioesp/master

Stylized ReadMe
Merge pull request #276 from erwincoumans/master

Enable CMake support for Windows Phone (_WIN32+_M_ARM) and Windows Store...