Added meta viewport tag to force proper zoom with respect to height on tablets.
Added Ipad specific bug fix. Browsers fire resize events inconsistently, however, they usually fire a final event (after all resizing is done).
Some versions of the Ipad don't fire a final resize event when moving from portrait to landscape, they do however fire an orientationchange event.
So we check for Ipad, then fire a resize on an orientationchange.

R=neil.fraser@gmail.com

Review URL: https://codereview.appspot.com/11396043

git-svn-id: http://blockly.googlecode.com/svn/trunk@1099 c400ca83-b69d-9dd7-9705-49c6b8615e23
Added meta tag to force proper visual viewport.

Review URL: https://codereview.appspot.com/11401043

git-svn-id: http://blockly.googlecode.com/svn/trunk@1101 c400ca83-b69d-9dd7-9705-49c6b8615e23