Merge pull request #408 from wmde/diffv

Declare compatibility with Diff 2.x

Author: thiemowmde

composer.json

@@ -24,7 +24,7 @@
 	},
 	"require": {
 		"php": ">=5.3.0",
-		"diff/diff": "~1.0",
+		"diff/diff": "~1.0|~2.0",
 		"data-values/data-values": "~0.1|~1.0"
 	},
 	"require-dev": {