Update Changelog for Versions 1.9.0 to 1.10.1#127

Manishearth merged 3 commits intounicode-rs:masterunicode-rs/unicode-segmentation:masterfrom

nicolasmendoza:docs/update-changelogs-from-v1.9.0-to-v1.10.1nicolasmendoza/unicode-segmentation:docs/update-changelogs-from-v1.9.0-to-v1.10.1Copy head branch name to clipboard