Ensure version number consistency

Cargo.toml

@@ -23,3 +23,4 @@ no_std = [] # This is a no-op, preserved for backward compatibility only.
 
 [dev-dependencies]
 quickcheck = "0.7"
+version-sync = "0.8"

README.md

@@ -45,6 +45,13 @@ unicode-segmentation = "1.2.1"
 
 # Change Log
 
+## 1.2.1
+
+* [#37](https://github.com/unicode-rs/unicode-segmentation/pull/37):
+  Fix panic in `provide_context`.
+* [#40](https://github.com/unicode-rs/unicode-segmentation/pull/40):
+  Fix crash in `prev_boundary`.
+
 ## 1.2.0
 
 * New `GraphemeCursor` API allows random access and bidirectional iteration.

tests/version-numbers.rs

@@ -0,0 +1,14 @@
+#[test]
+fn test_readme_deps() {
+    version_sync::assert_markdown_deps_updated!("README.md");
+}
+
+#[test]
+fn test_readme_changelog() {
+    version_sync::assert_contains_regex!("README.md", r"^## {version}$");
+}
+
+#[test]
+fn test_html_root_url() {
+    version_sync::assert_html_root_url_updated!("src/lib.rs");
+}