Mobile iOS Caveat Resolved

The caveat for mobile iOS that previously existed is now resolved (tested on iPhone 8, iOS 11.4). Thanks @Neddz .

Also:

• Compiled javascript file is now in UMD format to support loading via <script /> tags
• Compiled javascript file is now uglyfied/minified to a meagre 1.98kb
• Demo is now deployed on Now (thanks @yusinto for the 👍 suggestion)