refactor stable/juno and stable/kepler; use symlinks so integration-stack/ == soa-tooling/
add symlinks
update READMEs
add composites and READMEs for development/kepler/integration-stack and integration/kepler/integration-stack
refactor soa-tooling folder to soa-tooling symlink
refactor soa-tooling folder to soa-tooling symlink
refactor soa-tooling folder to soa-tooling symlink