Changes in mesh_refinement.C for -Wshadow.
Changes in mesh_refinement.C for -Wshadow.

Issue #24.

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