Remove the monkey-patch in patch.py, which has (since May 2012) been fixed in stomp.py.
Merge pull request #4 from LuminosoInsight/monkeyless

Remove the monkey-patch in patch.py, which has (since May 2012) been fix...
Cherry-pick three non-test changes from the testing branch:

* Minor refactor to the way the traceback list is built
* Remove the (according to Jason) unused "origin" member of RemoteException
* Change to str(exc) from repr(exc.message), for Py3 compatibility and good sense

Needs testing!
Merge pull request #6 from LuminosoInsight/testing_branch_cherrypick

Cherry-pick three non-test changes from the testing branch:
Remove pickling from json_wrap.py
Removing import used only by what was removed in the last commit