script: Rename release-flynn to release-packages

Signed-off-by: Lewis Marshall <lewis@lmars.net>
script: Add release-flynn to do full Flynn release

Signed-off-by: Lewis Marshall <lewis@lmars.net>
Merge pull request #369 from flynn/release-system

Complete build system
website: Add "How To Deploy Java" page

Signed-off-by: Lewis Marshall <lewis@lmars.net>