All defined by default LED patterns can be disabled at runtime

Some patterns were missing builtin-gconf toggles.

[mce] All defined by default LED patterns can be disabled at runtime
Make it easier to configure LED patterns in multiple ini-files

Configuration entry "LEDPatterns" is renamed to "LEDPatternsRequired"
and is used for emitting diagnostic messages about patterns that should
be available but are not - instead of disabling patterns that are not
listed.

Separate config entry "LEDPatternsDisabled" is added for blocking
patterns even if they are configured.

Both "LEDPatternsRequired" and "LEDPatternsDisabled" lists can be
accumulated from multiple ini-files.

[mce] Make it easier to configure LED patterns in multiple ini-files
Add example custom led pattern configuration file
Disable DeviceOn led pattern

Do not light the ledjust because the device is on.
Merge pull request #80 from spiiroin/led_patterns

Make it easier to configure LED patterns in multiple ini-files