Changes in quadrature_trap_3D.C for -Wshadow.
Changes in quadrature_trap_3D.C for -Wshadow.

Issue #24.

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