Fix #381 - provide way to trigger clean shutdown from command line.
Merge pull request #459 from humphd/issue381

Fix #381 - provide way to trigger clean shutdown from command line.
v0.0.66
v0.0.67
No Bug - fix regression on tests.
Merge pull request #461 from humphd/fix-test-bustage

No Bug - fix regression on tests.
Fix #382 - Make it possible to pass options to Filer from MakeDrive.fs()
Merge pull request #462 from humphd/issue382

Fix #382 - Make it possible to pass options to Filer from MakeDrive.fs()