Initial commit of re-written gem that works with payloads from the Monk ID JS library.
Fixed variable not being set if there's no payload.
Added #signed_in? method for convenience.
Documented with YARD. Changed name of config file to 'monk_id.yml'.
Added link to YARD documentation.
Added #dup to the version constant in the gemspec to prevent 'can't modify frozen string' error.
Fixed repository name in a few places.
Tweaked YARD documentation.
Added YARD as a dev dependency. Updated gem description.
Added #config method to get a config value. [fixes #2]