Fixing up ripple CSS classes across the board.
Renaming wsk-ripple--recentering to wsk-ripple--center
Merge pull request #573 from sgomes/material-sprint-ripple-css-pass

Fixing up ripple CSS classes across the board.
Radio button revamp
- Changed HTML structure for the component, to improve styling and remove hacky ~ operator
- Updated component look to match material spec
- Added focus states
Adding JS class and making sure the radio buttons work if we have no JS
Merge pull request #575 from sgomes/material-sprint-radio

Material Radio Button revamp for BEM