Better usability in WEB UIs

• Support for non-english characters on devices in WEB-UI
• Better overview of the groups and devices, with ON/OFF buttons on the same row
• Devices / groups are now sorted alphabetically instead of device id
• Now possible to send on/off/learn from the device configuration page
• A separate documentation of the Config Syntax. Also available in the WEB UIs
• The debug parameter (-d) now adds log entries for all ON, OFF and LEARN commands