Mobile Demos scale is off and user can zoom page

[AnmAtAnm]

Problem statement

The <meta> tag in demos/mobile/html/index.html is accidentally commented out.
This prevents the zoom scale from correctly initializing, and allow the user (or browser) to zoom in ways that are not intended and can be impossible to recover from.

Expected Behavior

The page should not zoom. I should always be the default scale for the device, so we can count on appropriate touch size, and never worry about zoom or panning the toolbox off the screen.

Actual Behavior

The page can zoom. This behavior is part of the HTML code, that get absorbed into the android and iOS code.

Steps to Reproduce

1. Open any of the web demos.
2. Pinch zoom in the toolbox area. Note this zooms the page.

Operating System and Browser

All mobile devices running the mobile demos.

[AnmAtAnm]

Fixed in develop