Merge pull request #47 from TeeheeLP/dev

Update to Version 1.4
Merge pull request #48 from TeeheeLP/dev

Update to Version 1.4.1
Merge pull request #49 from TeeheeLP/dev

Hotfix
Update plugextra.js
Update plugextra-x.js
Update plugextra-x.js
Update README
Update README
Update plugextra.js
Update README
Update README
Update plugextra-x.js
Merge pull request #50 from TeeheeLP/master

Pull