use shadows for icon-button.
polymer-ui-field: style tweaks
polymer-ui-field: add @polyfill rules
polymer-ui-overlay: add optional backdrop
polymer-ui-menu-button: tweak style
simple arrow ui
fix gruntfile for docs
add 'item' as generic published property on ui-menu-item
make polymer-ui-nav-arrow extends from polymer-ui-arrow; update
polymer-ui-arrow examples
add dark-theme to ratings
make polymer-ui-nav-arrow slightly more robust when timings are off
polymer-ui-overlay: backdrop click toggles the overlay
remove the logic that calc item's pos, instead check if target has
getOffsetMiddle and use that instead
getOffsetMiddle which can be consumed by polymer-ui-nav-arrow
polymer-ui-submenu-item extends polymer-ui-menu-item
bind target instead of item
polymer-ui-dialog: add demos using native <dialog>
polymer-ui-menu-item: reorg functions
polymer-ui-menu-button: fix z-order?
polymer-ui-menu-button: quick impl for top anchoring