[KARAF-1249] - Provide more fine grained Cellar features
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[KARAF-2203] - hazelcast.xml file should be installed by the hazelcast feature


git-svn-id: https://svn.apache.org/repos/asf/karaf/cellar/trunk@1458548 13f79535-47bb-0310-9956-ffa450edef68