Piecesjs Versions Save

Hello,

• Adding this.domAttr(query) shortcut to capture DOM using data-attr. Based on ModuJS logic

Hey folks,

Small updates here, some fixes and improvements 🔥

• Improve parameters management of the emit()
• Add prettier
• Fix .on() and .off() with a nodeList checker ( HTMLElement or HTMLElement[])
• Many readme updates

I currently working with piecesjs on a web project, so I decided to make a refactoring and officially create a release 0.1.0

• new this.emit() to trigger custom events.
• this.addEvent() -> this.on().
• this.removeEvent() -> this.off().
• Add beautiful comments.
• Clean up and update the readme.
• Add a collaboration section in the readme to explain how to build piecesjs locally.