- Added constructors for passing the URI of your private key. We prefer to have users of this library pass in a URI for their key file. That way, this api isn't just writing new key files to the current working directory. If the URI does not have a key already, one will be created there (if writeable). It will be the user's responsibility to safeguard their private keys.
- A bit of code cleanup in terms of spelling and removal of warnings, etc.
This makes the "pairing" section linkable via simply `#pairing` – I'd like for each of the libraries to follow this pattern.
Similarly, I'd like each of the libraries to expose a standard "Prerequisites" section following this files' format, with the links included.
