one stray 2 fixed
Re-factoring to get rid of secpera (see #153).
Actually removed the "secpera" and "pi" (replaced with M_PI).
Avoid PETSC ERROR traceback when failed to create a unit converter.
Merge branch 'dev' into till-hydro-dynamics
Merge branch 'dev' into till-hydro-dynamics
minor: clobber unused variable pedantic warning
Merge branch 'dev' into till-hydro-dynamics