/dev/api: Add a note about modhashes on OAuth.
/dev/api: Document the use of c.site.

For POST requests, this is done (preferably) by the "r" parameter. Other
requests use the path prefix /r/{subreddit}. Since c.site is a global,
it's hard to actually see if it's used by methods, so this uses an
additional manually added parameter to the api_doc decorator to indicate
when c.site is important.
/dev/api: Fix URL path for GET_moderationlog.
/dev/api: Move POST_accept_moderator_invite to moderation section.

Since that's where POST_leavemoderator lives, it seems more symmetric.
/dev/api: Make "one of" lists use <code>.

This increases consistency with the rest of the docs which put tokens in
<code> markers (which formats to a monospace font).
Corrected minor typographical errors.
/dev/api: Document the "moderation" section.
/dev/api: Fix erroneous GET_listing.

This isn't actually a routed endpoint but an artifact of code reuse.
Move over-18 intersitial outside of subreddit context.

This way subreddit sidebars aren't visible until you confirm your age.
Make multis require over18 if a constituent subreddit does.
compressed links: Add class non-destructively.

For compressed links mode, augment the render class instead of replacing
it. This fixes an issue where compressed promoted links in self serve
listings didn't get the "promoted" class.