Auto merge of #207 - servo:0.5.4, r=SimonSapin

Bump to 0.5.4

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Author: bors-servo

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "html5ever"
-version = "0.5.3"
+version = "0.5.4"
 authors = [ "The html5ever Project Developers" ]
 license = "MIT / Apache-2.0"
 repository = "https://github.com/servo/html5ever"