* 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