Fix list numbering in the README
Change description of the app in the README
Add an appropriate image to the README
Change our convention in the README from 'x_foo_x' to '_secure_foo'
Add EncryptionFilter
Add encryption_key to the Configuration
Update some initializers from using `#fetch` to `#[]` because we never want them to be nil even if they key exists
Extract Settings metadata out into a new method
Pass all options to clean_settings so that we don't need to update every time we add new settings
Allow Settings to be able to encrypt any secure settings it may be holding
Add `chamber settings init` to create the keypair and add the private key to the gitignore file
Allow decryption_key and encryption_key to be passed via the command line
Whitespace
Allow File to have the encryption/decryption keys passed in
Allow Files to be able to secure their contents
Update FileSet so that it can have the encryption/decryption keys passed in and then passed to the Files
Add the ability for FileSets to secure their Files
Remove items from the README which I'm not implementing right now
Add note to the README about using `chamber settings init`
Pass the encryption key to the Chamber loader