[PROPOSAL] Refactor packages to avoid the split package problem

[Hadrian Zbarcea]

Hi,

I opened a new jira [1] for this. While doing my refactoring in ./api I 
discovered quite a bunch of places where we have split packages among 
api, utils, core, etc.

I would recommend using something like:

org.apache.brooklyn.api.* in ./api
org.apache.brooklyn.core.* in ./core

and so forth. There are also a bunch of circular dependencies and other 
smaller issues that we should correct.

WDYT?
Hadrian