New version of advanc.f with stack based storage for fluxes. Produces smaller checkpoint files with openmp
Fixed baseCheck.f code from @mjberger that fixes errors observed in geoclaw/examples/tsunami/chile2010 where huge waves appeared at southern boundary around t = 4.5 hours
missing .f files in quadrants
added DEFAULT to omp statment in advanc
Updated Makefile to point to new rpn2 and rpt2 burgers.f90