lwt 2.4.6
typo
update checksum
The license of WiringPi is actually LGPL

It was relicensed in the 0.0.1 release, somehow that change slipped while packaging.
Merge pull request #2875 from Leonidas-from-XIV/bugfix/wiringpi-license

The license of WiringPi is actually LGPL
Merge pull request #2860 from diml/master

lwt 2.4.6