remove timout garbage collector

This is not a viable approach -- the initialize/finalize hooks create reference cycles which screw python garbage collection.  One could use weakrefs, but if we cannot guarantee that a connection which got timed out can be re-instantiated, then we should not mess with the connection in the first place.

However, this commit still does not solve the garbage collection problem -- while the adaptor destructors are now correctly called at the end of the program execution, I see no sign of any earlier garbage collection activities, no matter the runtime, obj usage etc.  So, this needs further debugging...
Merge branch 'devel' into fixes
GC now works, connection restart does not.

So, I had to revise my notion of python's variable scope, and with that newly
gained insight (a nice word for brain damage in this case) supports the result
that shell garbage collection now works as expected.
fix and enable test for #74
remove timout garbage collector

This is not a viable approach -- the initialize/finalize hooks create reference cycles which screw python garbage collection.  One could use weakrefs, but if we cannot guarantee that a connection which got timed out can be re-instantiated, then we should not mess with the connection in the first place.

However, this commit still does not solve the garbage collection problem -- while the adaptor destructors are now correctly called at the end of the program execution, I see no sign of any earlier garbage collection activities, no matter the runtime, obj usage etc.  So, this needs further debugging...
GC now works, connection restart does not.

So, I had to revise my notion of python's variable scope, and with that newly
gained insight (a nice word for brain damage in this case) supports the result
that shell garbage collection now works as expected.
fix and enable test for #74
Merge branch 'fixes' of github.com:saga-project/saga-python into fixes
Fix garbage collection remnants in queuing adaptors, typo in http adaptor, variable initialization in pbs adaptor

(saga-python)merzky@thinkie:~/saga/saga-python (fixes *=) $ python tests/run_tests.py -c tests/configs/pbs_ssh_sierra.cfg
Running the following configurations:
 * tests/configs/pbs_ssh_sierra.cfg
______________________________________________________________________
pbs_ssh_sierra.cfg : api/job
..........F.......F..
======================================================================
FAIL: Test job.suspend()/resume() - expecting state: SUSPENDED/RUNNIG
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/merzky/.virtualenv/saga-python/local/lib/python2.7/site-packages/nose-1.2.1-py2.7.egg/nose/case.py", line 197, in runTest
    self.test(*self.arg)
  File "/home/merzky/saga/saga-python/tests/unittests/api/job/test_job.py", line 233, in test_job_suspend_resume
    assert tc.notimpl_warn_only, "%s " % ni
AssertionError: NotImplemented: Job.suspend is not implemented for saga.adaptor.pbsjob.PBSJob (suspend)

======================================================================
FAIL: Test to submit a job via run_job, and retrieve id
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/merzky/.virtualenv/saga-python/local/lib/python2.7/site-packages/nose-1.2.1-py2.7.egg/nose/case.py", line 197, in runTest
    self.test(*self.arg)
  File "/home/merzky/saga/saga-python/tests/unittests/api/job/test_service.py", line 81, in test_run_job
    assert tc.notimpl_warn_only, "%s " % ni
AssertionError: NotImplemented: Service.run_job is not implemented for saga.adaptor.pbsjob.PBSJobService (run_job)

----------------------------------------------------------------------
Ran 21 tests in 117.013s

FAILED (failures=2)
______________________________________________________________________
fix variable initialization
Merge branch 'fixes' into devel
fixes #48