added first version of Test for Connection->insert()
implemented util for creating record data arrays, that can be used for inserting random data; extended Table for retrieving owning and referenced relations instead of full relations; fully tested insert - there are still problems with test-cleanup
Merge branch 'master' into dev_glady
disabled full schema insert testing, because there are still errors. added dummy datetime value (to now);
merged master
Merge branch 'master' into dev_glady
built more unit tests for connection update and delete