[maven-release-plugin] prepare release org.apache.sling.engine-2.3.10

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1639685 13f79535-47bb-0310-9956-ffa450edef68
[maven-release-plugin] prepare for next development iteration

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1639687 13f79535-47bb-0310-9956-ffa450edef68
SLING-4163 OSGi Mock: Reference bind/unbind method picking order

git-svn-id: https://svn.apache.org/repos/asf/sling/trunk@1639692 13f79535-47bb-0310-9956-ffa450edef68