Generalize stitch meshes to still do stitching if there are multiple boundary IDs on a side.
Generalize stitch meshes to still do stitching if there are multiple boundary IDs on a side.

Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh,Mbewu/libmesh