public function createTable($name, Array $columns, $safe_create = false)
	{
		if( (! $safe_create) || ($safe_create && ! Schema::connection($this->connection)->hasTable('users')) )
		{
			// dtop table if exists
			if (Schema::connection($this->connection)->hasTable($name))
			{
				Schema::connection($this->connection)->drop($name);
			}
			
			Schema::connection($this->connection)->create($name, function($table) use ($columns)
			{
				foreach($columns as $name => $type)
				{
		    		$table->$type($name);
		    	}
			});
		}
	}