Update to 0.1.3

Cargo.toml

 [package]
 name = "cbloom"
-version = "0.1.2"
+version = "0.1.3"
 authors = ["ticki <Ticki@users.noreply.github.com>"]
 description = "Concurrent implementation of Bloom filters."
 repository = "https://gitlab.redox-os.org/redox-os/cbloom"