0.3.1 Release

• Allow add-ons to register multiple adapters
• Fix PropertyEffect activation logic
• Wait for document.body to exist
• Improve ServiceWorker caching logic
• Remove maxAge-based caching
• Stop caching add-on list
• Enable HTTP Strict Transport Security
• Save on and power to properties
• Send WebSocket ping every 30 seconds
• Report name mismatches between adapter and list.json
• Move certs into ssl folder, add files to gitignore
• Make tsc ignore addons
• Allow user to update add-ons
• Log to console on failure to parse add-ons list
• Promote use of LTS
• Fix UI flash before login
• Pad floorplan image