Better failures, plus more info on keypairs
Changed protocol between the authentication polocy and the header. We now supply the information with message. Floated consumer factory out to dependency of AuthorizationHeader. Now we can customize it to support other signature methods.
[WIP] HMAC-SHA1 is in but does not work
[GREEN] HMAC-SHA1 works against twitter API (consumer only verified)
Version bump to 0.8.0
Version bump to 1.0.0
Regenerate gemspec for version 1.0.0