PAR-193 : Upgrade plexus 3.0.15 -> 3.0.16
PAR-272 : pluginManagement : Upgrade enforcer rules org.codehaus.mojo:extra-enforcer-rules:1.0-alpha-4 -> 1.0-beta-2
PAR-273 : Upgrade maven-scm-provider-svnjava 2.0.5 -> 2.1.0