Removed try/catch in isSubModel which was preventing JIT'ing.
Removed try/catch in isSubModel which was preventing JIT'ing.

jacksonic/foam,mdittmer/foam,jlhughes/foam,jlhughes/foam,foam-framework/foam,jlhughes/foam,mdittmer/foam,osric-the-knight/foam,jacksonic/foam,foam-framework/foam,jacksonic/foam,jlhughes/foam,osric-the-knight/foam,jacksonic/foam,foam-framework/foam,foam-framework/foam,osric-the-knight/foam,mdittmer/foam,foam-framework/foam,osric-the-knight/foam,mdittmer/foam