Use *_index_range in XDR IO
Use *_index_range in XDR IO

Except for in one loop, where we just cache so we can continue to use
an abnormal double-iterator-increment.

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