Wikimedia Labs/Things to fix in beta


 * 1) Change logos
 * 2) Add notice (preferably at the top of the page) to tell users that beta is a test environment, and not a production project. Also, the notice should inform users of the agreement_to_disclosure_of_personally_identifiable_information.
 * 3) Account creation form should display the Wikimedia_Labs/Account_creation_text
 * 4) The privacy policy section should also mention the information about beta being a test environment, and should link to the agreement_to_disclosure_of_personally_identifiable_information
 * 5) Checkuser must be disabled
 * 6) Rename central wiki from Labs to Beta
 * 7) Ensure that it's clear that steward access on beta does not give steward access to anything outside of beta