Add libmesh_noexcept macro.
Add libmesh_noexcept macro.

If the compiler supports C++11 noexcept, this macro expands to that,
otherwise it expands to the C++03 throw().

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