Merge pull request #27 from nikomatsakis/v0.13.1

release 0.13.1

Author: nikomatsakis

Cargo.toml

@@ -4,7 +4,7 @@ description = "Union-find, congruence closure, and other unification code. Based
 license = "MIT/Apache-2.0"
 homepage = "https://github.com/rust-lang-nursery/ena"
 repository = "https://github.com/rust-lang-nursery/ena"
-version = "0.13.0"
+version = "0.13.1"
 authors = ["Niko Matsakis <niko@alum.mit.edu>"]
 readme = "README.md"
 keywords = ["unification", "union-find"]