Changes in face_quad.C for -Wshadow.
Changes in face_quad.C for -Wshadow.

Issue #24.

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