- removed implementation headers from the public interface

- corrected a few places that did not include those headers by other means
- Bugfix: SkeletonMeshBuilder should now finally work correctly when skipping invalid node connections

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@203 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

code/AssimpPCH.h

@@ -94,6 +94,7 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 // *******************************************************************
 // internal headers that are nearly always required
 // *******************************************************************
+#include "BaseImporter.h"
 #include "MaterialSystem.h"
 #include "StringComparison.h"
 #include "StreamReader.h"