Forms: allow adding errors in onValidate event
fixed ActiveRow::toArray [Closes #970] [Closes #971]
Merge pull request #966 from HosipLan/bugfix/container-validate

Forms: allow adding errors in onValidate event
Databse: fixed #1b58902
Database: implemented reflection exceptions
Database: added tests for reflection exceptions
Database: reflection can return only NULL [Closes #778]
FileUpload::move() - added unlink() as prevention for permission denied error in move_uploaded_file()
Merge pull request #972 from hrach/database-reflection

Database reflection
typos, renamed some variables
typos
Latte: recognizes {Namespace\Class::member}
Forms: removed Environment [Closes #680]
Forms: CSRF protection extracted to standalone control
Forms: render error of hidden inputs