For whirr, add joda and netty dependencies
Fix/test RedisCluster

- Was not incrementing port, so failed if master+slave on same machine.
- Was not supplying port on ping/stop, so was stopping redis node that
  had claimed the default port on startup.
Avoid repeated "Web console user password" deprecated warning
MongoDB replica set: log if resize out-of-bounds
JmxHelper: auto-populate entity's JMX_URL attribute
Fix javadoc formatting errors
Docs update: output of `brooklyn --help`
Disable `-use` in javadoc generation

- fix for NPE when trying to deploy 0.6.0-M1 to sonatype
Update docs: web-console default user:password
Update docs: camel case for privateKeyFile
Merge pull request #881 from aledsage/merge/from-0.6.0-M1-to-master

Merging commits from 0.6.0-M1 to master