removed unneeded db permission and enhanced error handling on low entropy

A. Täffner

2016-04-11 c96d54201b953f9fa379c76237eddaa8552241c9

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ALTER TABLE `client` ADD `customer_no` VARCHAR( 64 ) NULL AFTER `contact_name` , ADD `vat_id` VARCHAR( 64 ) NULL AFTER `customer_no`;