pkgsrc's denedency. Bump PKGREVISION.
Add LICENSE. Changelog: * Relicensing under LGPL 2.1.
Bug #5828 - 'gd' PHP extension is not installed Bug #11795 - Unit Tests will not work without deprecated phpunit Bug #14460 - Reference to $this in static function Bug #14887 - E_NOTICE when setColors() and changeLightness() called