Auto merge of #38 - ferjm:version.bump, r=jdm

Bump version number to 4.0.7

r? @SimonSapin

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Cargo.toml

@@ -1,6 +1,6 @@
 [package]
 name = "servo-fontconfig-sys"
-version = "4.0.6"
+version = "4.0.7"
 authors = ["Keith Packard <keithp@keithp.com>", "Patrick Lam <plam@mit.edu>"]
 license = "MIT"
 description = "Font configuration and customization library"