Simplify config usage: only a simple array neccessary

Before, it was neccessary to use an array with sub-arrays
and some code was ugly and copied the configuration structure.
(updated test cases)

Experienced a problem with odbc_result: In case Enable runs on
a PHP lower version 5.5, its neccessary to explicit call
odbc_result, otherwise your update query will not be properly
executed. Known for sure that this call has to be made in PHP
5.3.x, but unsure for PHP 5.4.x