Relaxed composer version requirements so that stable releases can be …

…created.

Note that once sapphire, cms, and framework actually provide a stable version, '@stable' should put onto the end of the relevant require clauses.

composer.json

@@ -3,14 +3,14 @@
 	"description": "The SilverStripe Framework Installer",
 	"require": {
 		"php": ">=5.2.4",
-		"silverstripe/cms": "2.4.x-dev",
-		"silverstripe/framework": "2.4.x-dev",
-		"silverstripe-themes/blackcandy": "2.4.x-dev"
+		"silverstripe/cms": "2.4.*",
+		"silverstripe/framework": "2.4.*",
+		"silverstripe-themes/blackcandy": "2.4.*"
 	},
 	"minimum-stability": "dev",
 	"extra": {
 		"installer-paths": {
 			"sapphire": ["silverstripe/framework"]
 		}
 	}
-}
+}