Don't leak memory if the user calls attach_exact_*(functors) multiple times.
Don't leak memory if the user calls attach_exact_*(functors) multiple
times.



capitalaslash/libmesh,roystgnr/libmesh,benkirk/libmesh,dknez/libmesh,friedmud/libmesh,Mbewu/libmesh,dmcdougall/libmesh,aeslaughter/libmesh,giorgiobornia/libmesh,svallaghe/libmesh,hrittich/libmesh,pbauman/libmesh,friedmud/libmesh,capitalaslash/libmesh,vikramvgarg/libmesh,markcmiller86/libmesh_silo,capitalaslash/libmesh,jwpeterson/libmesh,permcody/libmesh,cahaynes/libmesh,benkirk/libmesh,karpeev/libmesh,hrittich/libmesh,karpeev/libmesh,dknez/libmesh,aeslaughter/libmesh,giorgiobornia/libmesh,aeslaughter/libmesh,BalticPinguin/libmesh,roystgnr/libmesh,salazardetroya/libmesh,aeslaughter/libmesh,dschwen/libmesh,dschwen/libmesh,capitalaslash/libmesh,hrittich/libmesh,Mbewu/libmesh,svallaghe/libmesh,roystgnr/libmesh,aeslaughter/libmesh,pbauman/libmesh,salazardetroya/libmesh,balborian/libmesh,coreymbryant/libmesh,friedmud/libmesh,jwpeterson/libmesh,permcody/libmesh,90jrong/libmesh,pbauman/libmesh,dmcdougall/libmesh,Mbewu/libmesh,vikramvgarg/libmesh,pbauman/libmesh,benkirk/libmesh,markcmiller86/libmesh_silo,dmcdougall/libmesh,libMesh/libmesh,jiangwen84/libmesh,balborian/libmesh,vikramvgarg/libmesh,svallaghe/libmesh,pbauman/libmesh,dknez/libmesh,dknez/libmesh,giorgiobornia/libmesh,coreymbryant/libmesh,roystgnr/libmesh,friedmud/libmesh,dschwen/libmesh,dschwen/libmesh,balborian/libmesh,markcmiller86/libmesh_silo,dschwen/libmesh,dknez/libmesh,benkirk/libmesh,karpeev/libmesh,dschwen/libmesh,cahaynes/libmesh,cahaynes/libmesh,jiangwen84/libmesh,benkirk/libmesh,capitalaslash/libmesh,svallaghe/libmesh,balborian/libmesh,jiangwen84/libmesh,giorgiobornia/libmesh,markcmiller86/libmesh_silo,svallaghe/libmesh,markcmiller86/libmesh_silo,balborian/libmesh,jiangwen84/libmesh,markcmiller86/libmesh_silo,jiangwen84/libmesh,salazardetroya/libmesh,jiangwen84/libmesh,hrittich/libmesh,coreymbryant/libmesh,capitalaslash/libmesh,balborian/libmesh,aeslaughter/libmesh,friedmud/libmesh,libMesh/libmesh,dmcdougall/libmesh,dmcdougall/libmesh,jwpeterson/libmesh,svallaghe/libmesh,salazardetroya/libmesh,BalticPinguin/libmesh,hrittich/libmesh,BalticPinguin/libmesh,dknez/libmesh,giorgiobornia/libmesh,dmcdougall/libmesh,pbauman/libmesh,libMesh/libmesh,jwpeterson/libmesh,BalticPinguin/libmesh,BalticPinguin/libmesh,aeslaughter/libmesh,balborian/libmesh,Mbewu/libmesh,pbauman/libmesh,jwpeterson/libmesh,jwpeterson/libmesh,coreymbryant/libmesh,friedmud/libmesh,dschwen/libmesh,roystgnr/libmesh,cahaynes/libmesh,permcody/libmesh,salazardetroya/libmesh,permcody/libmesh,BalticPinguin/libmesh,capitalaslash/libmesh,capitalaslash/libmesh,coreymbryant/libmesh,vikramvgarg/libmesh,90jrong/libmesh,BalticPinguin/libmesh,friedmud/libmesh,roystgnr/libmesh,vikramvgarg/libmesh,Mbewu/libmesh,friedmud/libmesh,giorgiobornia/libmesh,dmcdougall/libmesh,dschwen/libmesh,90jrong/libmesh,aeslaughter/libmesh,salazardetroya/libmesh,karpeev/libmesh,karpeev/libmesh,90jrong/libmesh,dmcdougall/libmesh,balborian/libmesh,libMesh/libmesh,balborian/libmesh,libMesh/libmesh,salazardetroya/libmesh,benkirk/libmesh,permcody/libmesh,jiangwen84/libmesh,coreymbryant/libmesh,dknez/libmesh,Mbewu/libmesh,friedmud/libmesh,Mbewu/libmesh,giorgiobornia/libmesh,hrittich/libmesh,90jrong/libmesh,giorgiobornia/libmesh,markcmiller86/libmesh_silo,karpeev/libmesh,markcmiller86/libmesh_silo,libMesh/libmesh,benkirk/libmesh,jwpeterson/libmesh,vikramvgarg/libmesh,coreymbryant/libmesh,vikramvgarg/libmesh,vikramvgarg/libmesh,Mbewu/libmesh,cahaynes/libmesh,pbauman/libmesh,permcody/libmesh,libMesh/libmesh,balborian/libmesh,90jrong/libmesh,90jrong/libmesh,benkirk/libmesh,salazardetroya/libmesh,svallaghe/libmesh,dknez/libmesh,hrittich/libmesh,permcody/libmesh,jwpeterson/libmesh,svallaghe/libmesh,pbauman/libmesh,permcody/libmesh,coreymbryant/libmesh,cahaynes/libmesh,vikramvgarg/libmesh,cahaynes/libmesh,jiangwen84/libmesh,karpeev/libmesh,roystgnr/libmesh,svallaghe/libmesh,BalticPinguin/libmesh,giorgiobornia/libmesh,hrittich/libmesh,roystgnr/libmesh,90jrong/libmesh,aeslaughter/libmesh,hrittich/libmesh,karpeev/libmesh,cahaynes/libmesh,90jrong/libmesh,benkirk/libmesh,libMesh/libmesh,Mbewu/libmesh