Bug Fixes:

• Fix error pagerqty
• Fix the problem #48 in the version 4.2.5 when using YUI Compressor
• Fix division by 0
• Ensure that slider.working is set to false at the end of goToSlide(), regardless of what happened with position.
• Add Callback for when Auto changes...
• Fix for Firefox59 and PointerEvent standard compatibility
• Fix for middle mouse click

Cleanup

• Fix typo
• Format the license in package.json to match the SPDX standard
• Code formatting