goBack() will redirect user to his returnUrl
fixes #925

added version information

Fix phpdoc.

Incorrect array representation when has previous exception

Add data padding and key derivation.

It was mentioned in AssetManager::publish phpdoc.

Fixes #911: Renamed base helper classes

Usage:
init --env=Development
init --env=Production

Fixed pagination not working before data loaded

issue #877

crud generator WIP.