added key generation task.

laravel/cli/dependencies.php

@@ -25,6 +25,16 @@ IoC::register('task: bundle', function()
 	return new Tasks\Bundle\Bundler;
 });
 
+/**
+ * The key task is responsible for generating a secure, random
+ * key for use by the application when encrypting strings or
+ * setting the hash values on cookie signatures.
+ */
+IoC::singleton('task: key', function()
+{
+	return new Tasks\Key;
+});
+
 /**
  * The bundle repository is responsible for communicating with
  * the Laravel bundle sources to get information regarding any