Updating link to wtfpl license (#2571)
The current wtpl license in the README is dead, so I'm updating it to use the current. The site doesn't have https, so if you want https we could also use https://choosealicense.com/licenses/wtfpl/.
Update CHANGELOG, history, and documentation
Bump Jekyll gem dependency to `v3.7`
Add links to high resolution skin screenshots
Resolves #2363
Update README and LICENSE (#2367)
* Update README and LICENSE
* README: Replace RawGit with jsDelivr
Update the info about what js scrips you are using (#2276)
Added Smooth Scroll and Gumshoe info