Support meta data in post entry.

Already covered by node server as it more loosely covers entry data
Merge branch 'master' of github.com:lloydwatkin/buddycloud-server-java
Respond to DISCO#ITEMS requests on topic domain
Removed debug entry
Move to version 1.1
Merge branch 'master' of https://github.com/buddycloud/buddycloud-server-java