Merge pull request #1 from Squirrel/first-draft

Merge pull request #2 from Squirrel/hash-reader

Metaprogramming getters for the hash

Update the `Configuring your client` README section

Keep `@@releases` sorted

Fix typo

Actually use the host variable in the URL format string

Add an error log when there aren’t any releases to serve

Rejig the README.

Improve the configuring client example

Update the README for the new file based releases store

Load db/releases.json in development and production

Don’t need the check for nil RACK_ENV, a default is provided

Add default value for @@releases

Don’t ignore db directory