1. System::calculate_norm() calls libmesh_not_implemented() when a norm is requested that is not implemented. 2. Fixed System::calculate_norm() for combinations of different discrete norms.
1. System::calculate_norm() calls libmesh_not_implemented() when a norm is requested that is not implemented.
2. Fixed System::calculate_norm() for combinations of different discrete norms.



git-svn-id: ffc1bc5b3feaf8644044862cc38c386ade156493@3839 434f946d-2f3d-0410-ba4c-cb9f52fb0dbf

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