#1541 nose with isolation

[Grégory Salvan]

Launching nose test runner with option ---with-isolation fail with error:
PyDev: Internal pydev error getting test address.

No matters when launched with same arguments in console: ./bin/nosetests --with-spec --with-isolation.

Pydev version : 2.6.0.2012062818
Eclipse SDK
Version: 4.2.1
Build id: M20120914-1800
nosetests version 1.2.1
pip 1.2.1
launched in a virtualenv python 2.7