Cleanup docs

- remove out-of-date (misleading) wish list
- removes unused/old catalog.md
- tidies up “writing an entity” docs a little bit
- tidies up Brooklyn projects / sub-projects listing
Remove whirr docs
Deprecate JcloudsUtil unused methods
Deleted whirr/hadoop

- moving code out of core, into separate repo
Use guava instead of com.beust Lists
This closes #86
This closes #87