v0.9.0-alpha+12

• Material Auto-Suggest Input: Improve keyboard navigation behavior.
• Material Button: Allow icon button items to be created vertically.
• Material Checkbox:
  • Support onDisabledChanged callback from angular_forms.
  • Add mixin to hide text label.
• Material Datepicker:
  • Fix direction of dropdown arrows in RTL locales.
  • Allow error messages to be shown on range picker inputs.
  • Add a mixin to remove left padding from the time picker.
• Material Dialog:
  • Set default max-height and max-width.
  • Add full screen mode.
• Material Expansison Panel:
  • Remove transform: scaley from expand animation.
  • Add mixin for top-aligning expand button.
  • Add option to move the expand button to the left side.
• Material Icon:
  • Add help icon to the list of icons flipped when direction is RTL.
• Material Input:
  • Support onDisabledChanged callback from angular_forms.
  • Push change detection when marked as disabled.
  • Add disabled class to "top-section" when the input is disabled.
  • Add mixin to allow hiding only the placeholder in the bottom section.
  • Support to fill in error text trailing.
  • Fix error color for floating label when an error is shown in the input.
• Material Menu:
  • Wrap long text in Fab Menu.
  • Horizontally align the expansion icon with the label.
• Material Radio:
  • Support onDisabledChanged callback from angular_forms.
  • Internal cleanup.
• Material Select: Pipe through customized aria role, labelby, and haspopup
  to the dropdown button.
• Material Tree: Use item identity to remember expanded state.
• Reorder List: Calculate the full height/width of the elements.
• Scorecard: Remove the :host from the padding mixin so it is not required to
  be used at the top level.
• Add HasDisabled interface.
• Propagate CSS classes on modal component to the overlay element.
• Annotate Domservice.leap() visible for testing.
• Add support for SingleSelectionModel to SelectionModel.empty.
• Add mat-link-deep mixin to push the Material link styles everywhere.
• Updates to new @HostBinding syntax.
• Update sass_builder dependency to latest and use the post-process builder to
  cleanup .scss files from the output.
• Support RTL selectors on any element.
• Remove usage of package UUID.
• Dart2 type fixes.
• Update documentation.