* Load default configuration during installation to avoid hard-coded values. [#890](https://github.com/FreshRSS/FreshRSS/issues/890)
* Fix non-consistent behaviour in Minz_Request::getBaseUrl() and introduce Minz_Request::guessBaseUrl(). [#906](https://github.com/FreshRSS/FreshRSS/issues/906)
* Generate `base_url` during the installation and add a `pubsubhubbub_enabled` configuration key. [#865](https://github.com/FreshRSS/FreshRSS/issues/865)
* Load configuration by recursion to overwrite array values. [#923](https://github.com/FreshRSS/FreshRSS/issues/923)
* Cast `$limits` configuration values in integer. [#925](https://github.com/FreshRSS/FreshRSS/issues/925)