Update README.md

- reverted to the google doc ver. of the CLA; less headache for now
Update README.md

- fixed the logo
Update CONTRIBUTING.md

- points to the google docs CLA now
- fixed all the references from discourse/core to discourse/discourse
Update DEVELOPMENT.md

- discourse/core references updated to discourse/discourse
Merge branch 'master' of github.com:discourse/discourse
Update README.md

- fixed all references of discourse/core to discourse/discourse.
Merge pull request #3 from qrush/use-https-rubygems

Use https://rubygems.org instead of http
Updated email hash to Gravatar specifications

Gravatar email hashes have two requirements:
* Whitespace must be trimmed
* Email should be downcased
Update AUTHORS.md
Merge pull request #21 from 5thWall/gravatar_hash

Updated email hash to Gravatar specifications
fix onebox for your own site
Merge branch 'master' of github.com:discourse/discourse
Working out outdated migrations

Several migrations were failing when running db:migrate at the initial release version from an empty database.
These changes took out statements that were causing migrations to fail, usually because of references to models that no longer exist.
Merge pull request #11 from keekerdc/fixing-outdated-migrations

Working out outdated migrations
hook up sanitizer
also for about me
Merge branch 'master' of github.com:discourse/discourse
structure.sql should match mine
Update app/views/static/faq.html.erb

remove example.com from example.com/tos
increase default max_likes_per_day to 30