Bug: Option "Customize Button: Variation Needed" stopped working.
JS code split into separate JS files
New option "Custom Text As Textbox": Add custom text as textbox (the max. width can be adjusted by side controls)
Adding a custom text (textbox), curved options were not available
When "Fit Images into Canvas" is enabled, clicking undo resets the size of an image
Element title in text-layers module added
Label added for done button in modal mode
babel plugin added so older safari versions are support (private class methods)
Polyfill rect method for roundRect method in CanvasRenderingContext2D added
