In preparation for the first release:
- change the Cave version to 2.3.0-SNAPSHOT
- update to Karaf 2.3.2
- update the manual with the filter option description of proxy and populate commands

git-svn-id: https://svn.apache.org/repos/asf/karaf/cave/trunk@1507335 13f79535-47bb-0310-9956-ffa450edef68