more concise debug logs from pty_process.py
implemented __deepcopy__ for Url class
Merge branch 'devel' of github.com-oleweidner:saga-project/saga-python into devel
added missing PROJECT to job.Description
make pty_job more resilient against prompt changes
Merge branch 'devel' into feature/remote_testing
unit tests now running against local and default backends; job test additions, ssh_job now passes

$ python tests/unittests/run_unittests.py job

merzky@thinkie: ... $ python tests/unittests/run_unittests.py

======================================================================
testing with test_ssh_local.cfg : api/job
----------------------------------------------------------------------
...........
----------------------------------------------------------------------
Ran 11 tests in 13.799s

OK
======================================================================

======================================================================
testing with test_internal.cfg : engine
----------------------------------------------------------------------
..................2013:02:14 01:08:49 140640778925824 engine
: [CRITICAL] fatal
.
----------------------------------------------------------------------
Ran 19 tests in 0.009s

OK
======================================================================

======================================================================
testing with test_internal.cfg : utils
----------------------------------------------------------------------
...
----------------------------------------------------------------------
Ran 3 tests in 0.001s

OK
======================================================================