Clarify BoundaryInfo boundary id set definitions
Clarify BoundaryInfo boundary id set definitions

We don't want to imply that we're storing global id sets in the case
where users aren't storing the global mesh.

BalticPinguin/libmesh,dschwen/libmesh,dschwen/libmesh,hrittich/libmesh,svallaghe/libmesh,friedmud/libmesh,jwpeterson/libmesh,giorgiobornia/libmesh,benkirk/libmesh,friedmud/libmesh,roystgnr/libmesh,pbauman/libmesh,coreymbryant/libmesh,giorgiobornia/libmesh,aeslaughter/libmesh,vikramvgarg/libmesh,friedmud/libmesh,roystgnr/libmesh,coreymbryant/libmesh,balborian/libmesh,svallaghe/libmesh,vikramvgarg/libmesh,balborian/libmesh,vikramvgarg/libmesh,friedmud/libmesh,jwpeterson/libmesh,roystgnr/libmesh,jwpeterson/libmesh,vikramvgarg/libmesh,balborian/libmesh,hrittich/libmesh,90jrong/libmesh,libMesh/libmesh,BalticPinguin/libmesh,dschwen/libmesh,dschwen/libmesh,vikramvgarg/libmesh,90jrong/libmesh,capitalaslash/libmesh,aeslaughter/libmesh,balborian/libmesh,pbauman/libmesh,benkirk/libmesh,BalticPinguin/libmesh,BalticPinguin/libmesh,90jrong/libmesh,vikramvgarg/libmesh,aeslaughter/libmesh,svallaghe/libmesh,benkirk/libmesh,roystgnr/libmesh,roystgnr/libmesh,coreymbryant/libmesh,pbauman/libmesh,balborian/libmesh,friedmud/libmesh,90jrong/libmesh,hrittich/libmesh,benkirk/libmesh,roystgnr/libmesh,aeslaughter/libmesh,pbauman/libmesh,pbauman/libmesh,capitalaslash/libmesh,svallaghe/libmesh,svallaghe/libmesh,giorgiobornia/libmesh,coreymbryant/libmesh,libMesh/libmesh,90jrong/libmesh,hrittich/libmesh,benkirk/libmesh,BalticPinguin/libmesh,capitalaslash/libmesh,coreymbryant/libmesh,vikramvgarg/libmesh,vikramvgarg/libmesh,friedmud/libmesh,libMesh/libmesh,jwpeterson/libmesh,jwpeterson/libmesh,jwpeterson/libmesh,capitalaslash/libmesh,svallaghe/libmesh,roystgnr/libmesh,svallaghe/libmesh,capitalaslash/libmesh,aeslaughter/libmesh,aeslaughter/libmesh,libMesh/libmesh,balborian/libmesh,friedmud/libmesh,aeslaughter/libmesh,benkirk/libmesh,pbauman/libmesh,giorgiobornia/libmesh,friedmud/libmesh,jwpeterson/libmesh,capitalaslash/libmesh,coreymbryant/libmesh,capitalaslash/libmesh,libMesh/libmesh,svallaghe/libmesh,friedmud/libmesh,90jrong/libmesh,balborian/libmesh,libMesh/libmesh,balborian/libmesh,balborian/libmesh,capitalaslash/libmesh,aeslaughter/libmesh,pbauman/libmesh,hrittich/libmesh,dschwen/libmesh,hrittich/libmesh,dschwen/libmesh,giorgiobornia/libmesh,libMesh/libmesh,coreymbryant/libmesh,BalticPinguin/libmesh,roystgnr/libmesh,pbauman/libmesh,giorgiobornia/libmesh,90jrong/libmesh,pbauman/libmesh,hrittich/libmesh,balborian/libmesh,jwpeterson/libmesh,benkirk/libmesh,coreymbryant/libmesh,benkirk/libmesh,vikramvgarg/libmesh,giorgiobornia/libmesh,giorgiobornia/libmesh,aeslaughter/libmesh,benkirk/libmesh,dschwen/libmesh,libMesh/libmesh,svallaghe/libmesh,dschwen/libmesh,90jrong/libmesh,BalticPinguin/libmesh,giorgiobornia/libmesh,hrittich/libmesh,90jrong/libmesh,BalticPinguin/libmesh,hrittich/libmesh