Correct parseXML script for unit tests
Correct parseXML script for unit tests

The script didn't report any problems in case of  exception occurence.
Also, only first error was shown. Now it is changed to all errors.
Also, improve readibilty of the printing.

wkrzemien/j-pet-framework,wkrzemien/j-pet-framework,wkrzemien/j-pet-framework,wkrzemien/j-pet-framework,wkrzemien/j-pet-framework