Revert timestepping improvment in rf_util.c
Better error checking on MAX_CONC for species source models
revert to original makefiles
fixed some more uninitialized memory read warnings
Merge pull request #10 from wortiz/revert_timestepping

Revert timestepping improvment in rf_util.c
Merge branch 'master' of github.com:goma/goma
Merge branch 'master' into cleanup