Send Points rather than individual coordinates
Send Points rather than individual coordinates

This should fix a bug with LIBMESH_DIM!=3 and DistributedMesh, and it
should be more efficient in some cases, and it should be easier to
refactor.

jwpeterson/libmesh,roystgnr/libmesh,dschwen/libmesh,giorgiobornia/libmesh,pbauman/libmesh,libMesh/libmesh,capitalaslash/libmesh,90jrong/libmesh,hrittich/libmesh,BalticPinguin/libmesh,dschwen/libmesh,BalticPinguin/libmesh,libMesh/libmesh,jwpeterson/libmesh,dschwen/libmesh,90jrong/libmesh,hrittich/libmesh,BalticPinguin/libmesh,90jrong/libmesh,capitalaslash/libmesh,roystgnr/libmesh,hrittich/libmesh,giorgiobornia/libmesh,90jrong/libmesh,libMesh/libmesh,roystgnr/libmesh,jwpeterson/libmesh,pbauman/libmesh,jwpeterson/libmesh,pbauman/libmesh,giorgiobornia/libmesh,jwpeterson/libmesh,jwpeterson/libmesh,libMesh/libmesh,BalticPinguin/libmesh,90jrong/libmesh,jwpeterson/libmesh,capitalaslash/libmesh,capitalaslash/libmesh,hrittich/libmesh,jwpeterson/libmesh,giorgiobornia/libmesh,pbauman/libmesh,capitalaslash/libmesh,roystgnr/libmesh,roystgnr/libmesh,90jrong/libmesh,giorgiobornia/libmesh,dschwen/libmesh,pbauman/libmesh,pbauman/libmesh,libMesh/libmesh,pbauman/libmesh,hrittich/libmesh,roystgnr/libmesh,giorgiobornia/libmesh,capitalaslash/libmesh,BalticPinguin/libmesh,dschwen/libmesh,BalticPinguin/libmesh,giorgiobornia/libmesh,hrittich/libmesh,pbauman/libmesh,giorgiobornia/libmesh,90jrong/libmesh,dschwen/libmesh,90jrong/libmesh,libMesh/libmesh,capitalaslash/libmesh,hrittich/libmesh,90jrong/libmesh,roystgnr/libmesh,hrittich/libmesh,BalticPinguin/libmesh,hrittich/libmesh,pbauman/libmesh,dschwen/libmesh,libMesh/libmesh,libMesh/libmesh,dschwen/libmesh,capitalaslash/libmesh,roystgnr/libmesh,giorgiobornia/libmesh,BalticPinguin/libmesh