Auto merge of #232 - Eijebong:versionup, r=SimonSapin

Bump cssparser-macros version

forgot to do when I bumped syn

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Author: bors-servo

macros/Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "cssparser-macros"
-version = "0.3.4"
+version = "0.3.5"
 authors = ["Simon Sapin <simon.sapin@exyr.org>"]
 description = "Procedural macros for cssparser"
 documentation = "https://docs.rs/cssparser-macros/"