docs(radioButton) - fix use of radio button values
refactor(utils) - added isDisabled() shortcut
refactor(ink) - separated ripple directive into inkRipple.js
refactor(checkbox) - use `Util.isDisabled()`
refactor(layout): layout-padding only for flex elements
docs(): remove empty attr values from highlightjs
docs(layout): update layout docs

Closes #125
fix(doc) - improved use of directive indicators in the demo headers
doc(radioButton) - improved jsDocs and demo
refactor(radioButton) - use `Util.isDisabled(element)`
docs(): enforce max-width everywhere
docs(): make all content have max-width
fix(toolbar): make content move with toolbar
code clarity changes
docs(): make all toolbar buttons use href
docs(): make material-button active style in toolbar correct
docs(): polish, more mobile friendly
demo(dialog): use material-button element, not class
demo(radioButton): use material-button element, not class
docs(): make paramType not accidentally be marked