Since the bootstrap customizations are applied in ApplicationContextInitializers
they come too late to affect the logging levels. But the LoggingRebinder listener
isn't installed yet, and the context is not ready for events to be published. So
to get the logging changes in as early as possible we actually need to explicitly
apply them in the property source initializer as soon as the remote properties are
available.
Fixes gh-74, fixes gh-75
6d3a60b64c