[KARAF-2833] Refactor activators with a single base class
[KARAF-2865] Avoid uninteresting exception stack traces while running load-test
[KARAF-2864] The internal logger for the felix framework is not configured

This is a bit of a hack, but we can't do much without any real enhancement in felix
[KARAF-2875] Remove useless StringMap class from main
[KARAF-2687] Better thread names for threads started from main
[KARAF-2833] Refactor activators with a single base class
[KARAF-2805] Rework service tracking to be more robust under high load
Add missing header
Remove ambiguity method names that cause some integration tests to fail
[KARAF-2859] Reverse the link between regions/persistence, as it causes the features service to be refreshed which isn't supported