Allow euclid 0.7

Author: nox

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 
 name = "layers"
-version = "0.2.5"
+version = "0.2.6"
 authors = ["The Servo Project Developers"]
 license = "MIT/Apache-2.0"
 
@@ -14,7 +14,7 @@ libc = "0.2"
 rustc-serialize = "0.3.16"
 log = "0.3.4"
 gleam = "0.2"
-euclid = "0.6.2"
+euclid = ">=0.6.2, <0.8"
 servo-skia = "0.20130412.8"
 azure = { git = "https://github.com/servo/rust-azure" }