added register info for new lattice element and material
added latticemasstransport domain type
moved coupling input to staggeredproblem
Removing unnecessary _IFT_EngngModel_coupling, switching to more appropriate _IFT_StaggeredProblem_coupling in staggeredproblem.C
Fixed bug in latticedamage2d
fixed bug in latticetransmat
Changes to reduce dependency between modules
Removing unnecessary includes to reduce dependency between modules
Null'ing pointer (caused segfaults).
Merge branch 'master' of github.com:Micket/oofem