bug fix for db2 v10 new column def of syscat.columns.default
remove debug echo statements and use more phpunit built in facilities where available
more compat with php 5.3
remove unsuitable test
Revert "remove unsuitable test"

This reverts commit 58d73c023ab8fadfc1f71e3728c74439d59ab7df.

I deleted the wrong file lol...
remove testwhich was unsuitable for test suite
Merge pull request #628 from rehfeldchris/db2v10columnbugfix

bug fix for db2 v10 new column def of syscat.columns.default