DQDefects: Fixes for nose 1.6.3.

DQDefects: Fixes for nose 1.6.3.

Newer versions of LCG update from nose 1.3.7 to nose 1.6.3.
However, nose 1.6.3 is apparently missing a few fixes that were in 1.3.7.
It misses a python3 fix for finding the line number of a function;
as a result, tests are run in the wrong order.  It also does not
use a docstring as the test description, as 1.3.7 does.

Add workarounds so that nose 1.6.3 will behave the same as 1.3.7.

Fixes test failure seen in dev3lcg.