* removed DibiResult::setType(TRUE) with autodetection
* removed DibiResult::getFields() & getMetaData() in favour of new method getColumnsMeta()
* MySQLi and MySQL transaction implementation are the same
* better escaping in DibiPostgreDriver (new pg_escape_string and addslashes)
* out of range seek() throws exception
* deprecated DibiDriver::errorInfo
* fixed seek(0) on first iteration
* added DibiDatabaseException::catchError() & restore() for converting errors to exceptions