Call DofMap::swap_dof_constraints().
Call DofMap::swap_dof_constraints().

Improve documentation around these function calls.

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