initial commit of key exchange and verification example app
Re-worked the identicon into a color-based identigrid
reomved identicon code
cleaned up UI, added a keyup event for search, reformatted the canvas image
added verified user list in a contacts area
tests are now authored and passing
key exchange demo updated to work with new crypton APIs, crypton api tweaks as the canvas was not visible in the DOM
changed fingerprint function to use hmac as per chiiph advice
updated as per ecto review
Merge pull request #278 from daviddahl/user-discovery-set-trust

initial commit of key exchange and verification example app