Move to docs for 0.7.0. Includes YAML GS and new Location section.
- GS split to 1) Download and Deploy, 2) Catalog and Polices
- brooklyn.properties small tidies
- many screenshots added
- YAML sample moved to include file
- Deprecated help file contents removed.
Merge pull request #1407 from jdtoy/gs-update-master-squash

Move to docs for 0.7.0. Includes YAML GS and new Location section.