Add shebang to generate.php

[deadcyclo]

Could you add a shebang (#!/usr/bin/env php) to the first line of generate.php so that it is directly executable on linux?

[klimeryk]

Thanks for the suggestion! Fixed in https://github.com/klimeryk/recalendar/commit/581d0b76cdae94e69fdba9d17e77ccc3cff2ace0