v1.2

What's new:

• Integration setup guide in README.md
• Added support for a closing pulse of 4500µs in the AC protocol, thanks to @devbis.
• Improved RC signal learning
• Support for raw Tuya Base64-encoded data via tuya: prefix
• Manual IP address entry now supported (instead of network scanning)
• Manual protocol version selection (instead of bruteforce)
• Russian translation
• Various bug fixes and improvements