Simplification: removed the MPI compile option (issue https://github.com/NAVADMC/SpreadModel/issues/238).
Some more small gitignore items for compiling
graceful_startup() including fallback call in edit_entry that doesn't seem to work well.  #237
Fixed 2 places where MPI still appeared in a Makefile.
new_entry fallback to graceful_startup() working as intended.  #237
Merge remote-tracking branch 'origin/master'
new_entry fallback to graceful_startup() working as intended.  #237
Recommitting the commit that was reverted by its evil twin.  i.e. Reverting the revert of the previous commit that doesn't look like a revert.  #237
Tests of the convex hull function were failing. Needed to break up long input lines for some tests.
A few more .gitignores for files generated when the test program DejaGnu runs.
Added an update link for #240
Merge remote-tracking branch 'origin/master'
Fixed up some failing tests in the unit/ directory. Failures came from still using the old "herd" terminology.
Merge branch 'master' into distance-speedup