Improved SSH instructions. Changed brooklyn version. (Update Script Miss.)
Added missing  <!-- BROOKLYN_VERSION -->s

Conflicts:

	docs/use/guide/quickstart/catalog.xml
Added missing {{ site.url }} to download.md.
Merge pull request #757 from jdtoy/0.5

Docs 0.5-SNAPSHOT: Updates to 0.5 docs, following changes to 0.5.0.