fixed bugs in validation classes.

system/validation/rules/format_of.php

@@ -34,7 +34,7 @@ class Format_Of extends Rule {
 	 * @param  string  $expression
 	 * @return Format_Of
 	 */
-	public function with($expression)
+	public function using($expression)
 	{
 		$this->expression = $expression;
 		return $this;

system/validation/rules/uniqueness_of.php

@@ -39,7 +39,7 @@ class Uniqueness_Of extends Rule {
 			$this->column = $attribute;
 		}
 
-		return DB::table(Eloquent::table($this->table)->where($this->column, '=', $attributes[$attribute])->count() == 0;
+		return DB::table(Eloquent::table($this->table))->where($this->column, '=', $attributes[$attribute])->count() == 0;
 	}
 
 	/**