Use send_list when enforcing constraints
Use send_list when enforcing constraints

We were previously using SERIAL rather than GHOSTED temporary vectors
in the case of PARALLEL inputs, and woe to the runtime of anyone who hit
these code paths on a lot of processors.

BalticPinguin/libmesh,capitalaslash/libmesh,jwpeterson/libmesh,libMesh/libmesh,BalticPinguin/libmesh,jwpeterson/libmesh,dschwen/libmesh,libMesh/libmesh,roystgnr/libmesh,jwpeterson/libmesh,dschwen/libmesh,capitalaslash/libmesh,capitalaslash/libmesh,libMesh/libmesh,jwpeterson/libmesh,roystgnr/libmesh,jwpeterson/libmesh,dschwen/libmesh,BalticPinguin/libmesh,dschwen/libmesh,roystgnr/libmesh,roystgnr/libmesh,roystgnr/libmesh,jwpeterson/libmesh,capitalaslash/libmesh,BalticPinguin/libmesh,libMesh/libmesh,dschwen/libmesh,capitalaslash/libmesh,capitalaslash/libmesh,dschwen/libmesh,capitalaslash/libmesh,roystgnr/libmesh,roystgnr/libmesh,libMesh/libmesh,libMesh/libmesh,BalticPinguin/libmesh,jwpeterson/libmesh,dschwen/libmesh,dschwen/libmesh,libMesh/libmesh,libMesh/libmesh,roystgnr/libmesh,jwpeterson/libmesh,BalticPinguin/libmesh,BalticPinguin/libmesh,BalticPinguin/libmesh,capitalaslash/libmesh