code cleanup and fixed lints

bumped version number

Author: pyfisch

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "language-tags"
-version = "0.2.0"
+version = "0.2.1"
 authors = ["Pyfisch <[email protected]>"]
 exclude = ["README.md", ".travis.yml", ".gitignore"]