Update permissions on api.wikimedia.org for launch

• Write up spec
• Create patch
• Deploy

Permissions spec

• All pages are visible to logged-in and logged-out users
• Documentation editors can edit all pages
• Logged in users without the docs-editor permission can edit only talk pages

To do:

• Remove special "whitelisted" pages
• * (not logged in): change read to true
• user: change read to true
• docseditor: change read to true