[PROPOSAL] Update the package names to org.apache.brooklyn

[Hadrian Zbarcea]

Hi,

It looks like it's a bit controversial if the package names update is 
required or required for graduation. Rob Vesse says that in Jena they 
didn't do it for graduation, but they still did it when moved to the 
next major release.

Since we are before the 1.0.0 release, unless we want to keep the 
brooklyn.* packages for ever, I would suggest doing the package update 
to org.apache.brooklyn.* sooner vs than later and plan to release 0.8.0 
shortly after.

It looks like it's not easy to shorten the PR queue, so I would favour a 
piecemeal approach, even if it would require redoing some of the PRs. I 
suspect that with the right granularity, we could avoid conflicts most 
of the time.

Thoughts?
Hadrian