Update to final 0.5.9 release (Velocidex#1065)

Fixed broken darwin build (Velocidex#1043)

Prepare for release 0.5.8 (Velocidex#1014)

Prepare for release 0.5.8 RC1 (Velocidex#997)

Prepare for release 0.5.7 (Velocidex#973)

Added a System.Hunt.Creation artifact (Velocidex#911)

This allows for server monitoring artifacts that detect new hunt creations.

Also fixed possible deadlock in watch_monitoring()

Bugfix release 0.5.5-1 (Velocidex#895)

Prepare for 0.5.5 release. (Velocidex#878)

Fix crash on windows service. (Velocidex#841)

When a config file is missing, the service attempts to log but logging
is not yet available.

More UI cancellation on more widgets. (Velocidex#791)