Fix derivative and copy constructor (#1333)
Fix derivative and copy constructor (#1333)

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