Merge pull request #2 from mtola/master

comment vtk
Fixing Windows compilation errors. There are still some warnings.
Merge pull request #3 from ruribe/master

Fixing some Windows problems (but still errors)
Fixes BaseLog printing problem and missing const in BaseMesh. In addition, the main CMakeLists controls if Boost is not found.
Merge pull request #4 from ruribe/master

Fixing small bugs (mainly for VStudio...)
solution for .lib/.dll problems on Windows but still errors because of abstract function Process in MeshFilter.hxx
solution for .lib/.dll problems on Windows but still errors because of abstract function Process in MeshFilter.hxx (minor edits)