Reorder DofObject id and unique_id
Reorder DofObject id and unique_id

In the most common case (unique id 8 bytes, id 4 bytes, processor id 4
bytes) this should save us 8 bytes of padding per DofObject

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