refactor(micro): Add Maven central to default repo list
# Remote maven repositories to use when looking for plugins. Comma separated
# list of URLs.
-apiman.plugins.repositories=http://repository.jboss.org/nexus/content/groups/public/
+apiman.plugins.repositories=https://repo1.maven.org/maven2/,http://repository.jboss.org/nexus/content/groups/public/
# Apiman Manager logging. standard, json or a FQDN implementing IApimanLogger
apiman-manager.config.logger=standard
