Update version number for release

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "webdriver"
-version = "0.2.0"
+version = "0.2.2"
 authors = ["Mozilla Tools and Automation <auto-tools@mozilla.com>"]
 description = "Library implementing the wire protocol for the W3C WebDriver specification."
 repository = "https://github.com/jgraham/webdriver-rust"
@@ -9,7 +9,7 @@ license = "MPL-2.0"
 
 [dependencies]
 log = "0.3.1"
-regex = "0.1.30"
-rustc-serialize = "0.3.14"
+regex = "0.1.41"
+rustc-serialize = "0.3.15"
 uuid = "0.1.17"
 hyper = {version = "0.6", default-features = false}