Try to autodetect evdev inputs instead of relying on lookup tables

Determine type of evdev input source from the event types and
codes it supports.

Blacklisting (both hardcoded and from ini-files) is still supported.
Demote evdev probing logging to NOTICE level
Merge pull request #27 from spiiroin/evdev_probe

Try to autodetect evdev inputs instead of relying on lookup tables