Changes from Fulleron:
Fixed cache load for file backend
Fixed error reporting for file uploads
Added encrypted config paths
Renamed BConfig::invalidManifestPHP -> isInvalidManifestPHP
Renamed BEvents::fireRegex -> fireRegexp
Fixed DDL key updates
Added BValidate, model data validation rules handling
Added use_meta flag for main view in layout
Removed ad-hoc exception output in idiorm.php
Fixed some BUtil::remoteHttp issues
Added import/export .po translation files
Fixed BLocale::currency()
Added BRSA with offsite decryption option
Fixed not showing theme when module is not enabled
Improved BTwig