Add ripples

[ZMYaro]

[ZMYaro]

No pure CSS, cross-browser-compatible solution for ripples has been found. This is being treated as wontfix until a suitable solution is found.

[ZMYaro]

Ripples for checkboxes, radio buttons, and toggle switches were added in v2.y; ripples inside elements (such as buttons) are still unavailable for the aforementioned reason.