* MDC_#702 - Start to implement accessibility configurator
* MDC_#702 - Implemented configurator method to modify accessibility colors to app bar and implemented example use
* MDC_#702 - Updated examples
* MDC_#702 - Updated naming convention
* MDC_#702 - Readability
* MDC_#702 - Updated pod spec to include new class MDCAppBarAccessibilityEnforcer, started adding tests, updated examples to new use class
* MDC_#702 - Stubbed out tests
* MDC_#702 - Re-implemented MDCAppBarAccessibilityEnforcer as object within AppBar component
* Filled in additional tests
* MDC_#702 - Updated method name
* MDC_#702 - Updated test cases
* MDC_#702 - Update added test to Swift 3.0
* [AppBar] - Update accessibility mutator class
* [AppBar] - Updated text selection in mutator method
* [AppBar] - Removed init method per comment
* [AppBar] - Updated colors in AppBar demo examples
* Replace MDC all icons
* Update border
* Replace MDCActionExtension icon with new logo
* Update all headers to be white on black
* Make Catalog greyscale to match Material’s style.
* Fix collection tile
* Update all headers to be white on black
* Make Catalog greyscale to match Material’s style.
* Fix collection tile
* WIP: Updating TabBar example to use black/green theme.
* WIP: Monochoroming all examples.
* Switch MDC Catalog to a black and white theme (#1355)
* Replace MDC all icons
* Update border
* Replace MDCActionExtension icon with new logo
* Update all headers to be white on black
* Make Catalog greyscale to match Material’s style.
* Fix collection tile
* Update all headers to be white on black
* Make Catalog greyscale to match Material’s style.
* Fix collection tile
* Fix floats
* Make Catalog greyscale to match Material’s style.
* More black and whiting
* WIP: Snackbar and global style
* Simplify snack bar examples.
* Page control
* [MDCInkView] cancelAllAnimationsAnimated should support disabling animation
* [MDCProgressView] Allow completion block to be modified if setHidden:animated:completion is called sequentially
* Call completion block immediately rather than storing as a property.
* Add nil check for completion block
* [Shrine] Update to Swift 3
* [AppBar] Add Objective C AppBar storyboard example
* Add right button bar item to AppBar swift demo
Summary: Add an AppBar example using Swift and Interface Builder
Reviewers: featherless, #mdc_ios_owners
Reviewed By: featherless, #mdc_ios_owners
Projects: #material_components_ios
Differential Revision: http://codereview.cc/D817
Summary: This example shows how one might register a custom background image in the App Bar.
Reviewers: #mdc_ios_owners, ajsecord
Reviewed By: #mdc_ios_owners, ajsecord
Projects: #material_components_ios
Differential Revision: http://codereview.cc/D374
