Add extra.branch-alias directive at composer.json in order to allow semver installs for development versions

Author: phansys

composer.json

@@ -37,5 +37,10 @@
 		"psr-0": {
 			"Resque": "lib"
 		}
-	}
+	},
+    "extra": {
+        "branch-alias": {
+            "dev-master": "1.0-dev"
+        }
+    }
 }