private static function _getInstaller()
	{
		self::_init();
		if (!self::$installer)
		{
			self::$installer = Installer::create(self::_getIO(), self::_getComposer());
		}
		return self::$installer;
	}
private static function _getInstaller()
	{
		self::_init();
		if (!self::$installer)
		{
			self::$installer = Installer::create(self::_getIO(), self::_getComposer());
		}
		return self::$installer;
	}
private static function _getInstaller ( ) { self :: _init ( ) ; if ( ! self :: $ installer ) { self :: $ installer = Installer :: create ( self :: _getIO ( ) , self :: _getComposer ( ) ) ; } return self :: $ installer ; }
Return the installer after ensuring Composer is set up

@return	object	Composer\Installer object in use
Return the installer after ensuring Composer is set up