Merge pull request #1 from TeeheeLP/dev

Dev
Update plugextra.js
Merge pull request #2 from TeeheeLP/dev

Dev
Update plugextra.js
Update plugextra.js
Update plugextra-x.js
Merge pull request #3 from TeeheeLP/dev

Dev
Update plugextra-x.js
Update plugextra-x.js
Update plugextra-x.js
Merge pull request #4 from TeeheeLP/master

Fix