Auto merge of #69 - servo:unbumb, r=nox

Revert previous dependency upgrades.

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Author: bors-servo

Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "core-text"
-version = "6.1.1"
+version = "6.1.2"
 authors = ["The Servo Project Developers"]
 description = "Bindings to the Core Text framework."
 license = "MIT/Apache-2.0"
@@ -16,5 +16,5 @@ mountainlion = []
 libc = "0.2"
 
 [target.x86_64-apple-darwin.dependencies]
-core-foundation = "0.4"
-core-graphics = "0.9"
+core-foundation = "0.3"
+core-graphics = "0.8"