* Add support for clip masks on text runs.
* Fix atomic ordering of items with multiple shadows.
* Update to bincode + ipc-channel with optimizations.
* Fix some plane splitting precision errors.
* Improve the anti-aliasing quality significantly.
* Add internal ClipChain support.
* Fix diacritic glyphs on Linux.
Source-Repo: https://github.com/servo/servo
Source-Revision: d3d2b0261a8aacd4f74e330f8c007a91f829a96e