Fixed element normal calculations for 2D elements living in 3D.  The normal vector now lies in the tangent plane of the element rather than arbitrarily in the x-y plane.
Fixed element normal calculations for 2D elements living in 3D.  The normal vector now lies in the tangent plane of the element rather than arbitrarily in the x-y plane.


git-svn-id: ffc1bc5b3feaf8644044862cc38c386ade156493@1769 434f946d-2f3d-0410-ba4c-cb9f52fb0dbf

certik/libmesh,certik/libmesh,certik/libmesh,certik/libmesh,certik/libmesh,certik/libmesh,certik/libmesh