Merge branch 'reply-attachment'

Add comment attachments to API doc

Implement federation for comment attachments

Initial work on reply attachment support

Apply sanitization to comment content

Remove note about sanitization in docs

Sanitize outgoing HTML (#110)

Include score and optionally your_vote in every post list (#109)

Merge branch 'api-changes' into master

Breaking API change: rename comments to replies in post info

Breaking API change: make login user info more consistent

Move ratelimit implementation into external crate 'henry'

Add media upload API to docs

Update docs with new env variables

Bypass ratelimit if ALLOW_FORWARDED is true but no X-Forwarded-For

Merge branch 'ratelimit' into master

Remove logging from ratelimit, increase rate to a more reasonable number

Allow using X-Forwarded-For to change ratelimit key

Initial work on ratelimiting

Disallow empty comments (#106)

Use a Note with attachment for image posts