Make sure month comparison are done with lowercase.

Add additional stuff
Add trim for qualifier and certainty values.

Merge branch 'master' of gitlab.switch.ch:memoriav/memobase-2020/libraries/normalizer-service-configuration

Update service utility dependency

Add tests to date normalizations.
Add some report messages to date normalization when something goes wrong.

Fix month formatting.

# Conflicts:
#	build.gradle

This reverts commit bddbe8f1

This reverts commit f06d209e

This reverts commit c6f0e780

This reverts commit 32d354da

This reverts commit 30b3a08c

Improve error handling for global transform loader
Make configuration validation much more strict for date normalizer.