0.5.0

This release is based on Milestone 5 and provides a major upgrade, also architectural: see issue #132 and its resolution via PR #222 .
These are related to running Probes (healthchecks) in their own schedule (i.s.o. via cron).
See the documentation for the new architecture.

A full list of issues that went into this release can be found at https://github.com/geopython/GeoHealthCheck/milestone/5?closed=1

This release requires a DB upgrade when upgrading earlier versions. Running paver upgrade is required when upgrading to 0.5.0. DB upgrade is performed automatically when upgrading your Docker image.

Also note the new/changed options for running GHC in the relevant documentation.