Adds experimental implementation for the reveal animation pattern.

In polynmer this is done with clip css property, which does not work that well on mobile especially on large animations. This implmentation is done with reversed scaling and works on all borwsers, but further tests are required to weights the benefits and performance
Small fix in styling
Experimental notification for use cases of hadear panel where header is animated
Disable the autocomplete and auto capiralize of the input on iOS
Make the button ripple more subtle
Add mixin for transform origin
Add documentation for the delighful detail icons
Add info about the bug in FF that prevents the delighful details implementation from working