Use node iterators instead of looping over mesh nodes and do not move second-order vertices which are on the boundary.
Use node iterators instead of looping over mesh nodes and do not move second-order vertices which are on the boundary.


git-svn-id: ffc1bc5b3feaf8644044862cc38c386ade156493@1866 434f946d-2f3d-0410-ba4c-cb9f52fb0dbf

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