
Remove unnecessary "element unchanged" projection,
Produce an error upon non-Lagrange coarsening, not bad data


git-svn-id: ffc1bc5b3feaf8644044862cc38c386ade156493@1045 434f946d-2f3d-0410-ba4c-cb9f52fb0dbf

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