• updated signal-cli to v0.13.2
• add recipient parameter to /v2/send endpoint (#428)
• pass JAVA_OPTS environment variable through to signal-cli in json-rpc mode - thanks to @kleptog
• in case one runs into rate limiting issues in json-rpc mode, the request now fails with a HTTP status code 429 and returns the challenge_tokens, which are needed to lift the rate limiting restrictions again
• added new API endpoints to list and add sticker packs
• extended /v2/send endpoint with the possibility to edit messages
• added new endpoints to set usernames + change the account settings