CustomRigidJoint linker problem

Hi

There is a minor problem in customrigidjoint: the keyword _OgreNewtExport is missing in the class declaration (inc\OgreNewt_BasicJoints.h, line 472).

By the way, what is the "dir" param?

i have updated CVS with the changes. "dir" is a global vector used as the "main" direction vector of the joint, and used in the calculations. generally any vector will do, as this joint has 0 degrees of freedom.