React Pdf Js Versions Save

Full release of version 4. This is a full rewrite to bring our package size down a bit and move back to the latest version of pdf.js.

We've lost a couple features along the way. Let's discuss which ones we want to bring back. I don't want to make it too complicated this time. I'm aiming for simple and small. Feel free to post feedback in our issues.

Includes:

• Complete rewrite from scratch, trying to simplify things and remove some cruft
• Based on create-react-library (which includes create-react-app for an example site)
• Switched from pdf.combined.js to pdf.js to save a huge amount of size
• Updated to latest pdf.js

Includes:

• Updated dependencies
• Supports use with webpack 4 now

Includes:

• Updated dependencies
• #57
• #54

Includes:

• #51 by @andaleebroomy

Includes:

• Updated packages
• Pull request #47

Fixed #40

Includes:

• Pull request #44
• Updated packages

Includes:

• Update to pdfjs-dist ^2.0.0 (big change)
• Update other packages

Includes:

• Fixing unsafe ternary - #35