• applied patches to update_switch_poe-mode.php as suggested by scrutinizer-ci.com
• code clean up and improvements in preparation of support for UniFi OS-based controllers
• added support for UniFi OS-based controllers, thanks to @scyto for providing access
• adapt login route and method, and base URL for UniFi OS-based controllers
• automatically identify UniFi OS-based controllers, thanks to @TwitchCaptain for this and several other suggestions
• relaxed URL validation to allow UniFi OS-based controllers to pass
• changed default HTTP method to GET
• many improvements throughout the code