Merge pull request #4 from nox/heapsize

Allow heapsize 0.3

Author: pyfisch

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "language-tags"
-version = "0.2.1"
+version = "0.2.2"
 authors = ["Pyfisch <[email protected]>"]
 exclude = ["README.md", ".travis.yml", ".gitignore"]
 
@@ -11,7 +11,7 @@ documentation = "http://pyfisch.github.io/rust-language-tags/language_tags/"
 keywords = ["language", "internationalization", "translation", "http", "html"]
 
 [dependencies.heapsize]
-version = "0.2.2"
+version = ">=0.2.2, <0.4"
 optional = true
 
 [dependencies.heapsize_plugin]