use host from http headers for audience
Working to make config clearer
Use long names for config options
Merge pull request #13 from WardCunningham/nrn/cfg

Cleaning up configuration.
Merge branch 'master' into persona-issue6
audience from header, or argv.url if provided
User-focused ReadMe
Concept and value of fededrated wiki
Omit references to missing documentation.
Persona centric welcome-visitors
manual merge
Merge pull request #11 from paul90/persona-issue6

In persona.verify_assertion use http host as the audience, rather than argv.u
tweaking ReadMe wording
replace Persona sign in image with css
add owner, and modifiy login button
Database configuration
rename loginStatus to loginBtnTxt

Used as the text for the login button - the other use as the footer class
does not appear to be used, but could easily return.
Merge remote branch 'upstream/master' into redis
Merge pull request #15 from paul90/state-signin

Modify "Sign In" text depending on site status
Merge pull request #16 from WardCunningham/nrn/dbconf

Database configuration