QPID-5813, QPID-5913: various LICENCE and NOTICE file updates
    
- Ensure the main java directory has LICENSE and NOTICE files for use in new source archive.
- Update pointers within the files at the repo root.
- Ensure the main java directory has LICENSE entry for crypto-js for inclusion in source release.
- Ensure the management-http binary jar contains LICENSE file entry for crypto-js, clarify entry in brokers binary assembly tar.gz file.
- Update reference file for dep change verification.

merge from trunk r1617301


git-svn-id: https://svn.apache.org/repos/asf/qpid/branches/0.30@1617303 13f79535-47bb-0310-9956-ffa450edef68