- Bugfix: ColladaParser now properly tunnels XML reading through the Assimp IO System

- Bugfix: IrrXML-IOWrapper now properly inherits the irr interface
- moved some "using namespace" directives out of the header

git-svn-id: https://assimp.svn.sourceforge.net/svnroot/assimp/trunk@351 67173fc5-114c-0410-ac8e-9d2fd5bffc1f

code/IRRLoader.cpp

@@ -60,6 +60,8 @@ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 #endif
 
 using namespace Assimp;
+using namespace irr;
+using namespace irr::io;
 using namespace boost::math;