Release v0.9.0

Important

• This update may require deleting the events section in state.json.
• See below for updating the eventLookaheadDays config option

New Features

• Support for adding events to Google Calendar
• Make message size limit configurable
• Improve monitoring tool, and convert it to AutoHotkey2

Changes

• Move eventLookaheadDays config option to elternportal section

Fixes

• Send messages from threads in chronological order
• Speculative fix for handling multiple attachments in threads
• Handle inquiries with empty text
• Improve handling of transient IMAP errors