Adds Externalizer - fault tolerant MeatLocker
Merge pull request #126 from twitter/externalizer

Adds Externalizer - fault tolerant MeatLocker
add community section
add archive link.
Merge pull request #127 from twitter/feature/readme

Add Community Section to README.md
Merge branch 'develop' of github.com:twitter/chill into akka

Conflicts:
	README.md