Merge fixes to base repo

[ZeroByter]

I have been keeping an eye on this repo, and I like the changes!
I think you should merge these awesome fixes to my base repo to make it easier for everyone to utilize these changes and fixes.

[noamalffasy]

That would be a great idea!

I had actually thought of merging the fork but then I changed too many things, such as the formatting and updated the JS from ES5 to ES6.
Perhaps it could be an opportunity for adding style enforcement of some kind.

Another thing I think should be worked on before merging is tests.
Perhaps making a fake server could help, the server would test all cases such as choosing a folder, the source folder, uploading from IDE, etc.