Dirichlet bugfix on refined meshes
Dirichlet bugfix on refined meshes

Calculating Dirichlet values should only happen on active elements.
This was breaking horribly on mesh coarsening.

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