Tune debug led pattern priorities

All debug led patterns now have lower priority than shutdown pattern to
make it easier to detect that shutdown has started even if the ui is not
in responsive state.

Also kernel suspend problems have priority over lipstick ipc issues.

[mce] Tune debug led pattern priorities
Tune example custom led pattern priorities

Even though these are not included in the rpm / used by default, the
example patterns are moved to priority range in between communication
and charging patterns. This should make it less likely that duplicating
these for custom purposes ends up in completely wrong priority range.
Fix debug led pattern naming

Correct systematic copy-paste error in pattern names.
Merge pull request #137 from spiiroin/tune_led_pattern_priorities

Tune led pattern priorities
Send led pattern activated/deactivated D-Bus signals

When enabled led pattern gets activated or deactivated for any
reason, an appropriate D-Bus signal is sent over the system bus.

[mce] Send led pattern activated/deactivated D-Bus signals
Merge pull request #138 from spiiroin/send_led_pattern_signals

Send led pattern activated/deactivated D-Bus signals
Bump mce version to 1.25.0