cleaning up various codes.

laravel/database/connectors/sqlite.php

@@ -14,8 +14,7 @@ class SQLite extends Connector {
 
 		// SQLite provides supported for "in-memory" databases, which exist only for the
 		// lifetime of the request. Any given in-memory database may only have one PDO
-		// connection open to it at a time. Generally, these databases are used for
-		// testing and development purposes, not in production scenarios.
+		// connection open to it at a time. These are usually for testing.
 		if ($config['database'] == ':memory:')
 		{
 			return new PDO('sqlite::memory:', null, null, $options);