Python >= 3.1 do not need ordereddict package.

[zaufi]

W/o this patch I've got the following error on my gentoo system:

zaufi@gentop〉~〉jirashell
Traceback (most recent call last):
File "/usr/lib/python-exec/python3.4/jirashell", line 5, in <module>
    from pkg_resources import load_entry_point
File "/usr/lib64/python3.4/site-packages/pkg_resources/__init__.py", line 3084, in <module>
    @_call_aside
File "/usr/lib64/python3.4/site-packages/pkg_resources/__init__.py", line 3070, in _call_aside
    f(*args, **kwargs)
File "/usr/lib64/python3.4/site-packages/pkg_resources/__init__.py", line 3097, in _initialize_master_working_set
    working_set = WorkingSet._build_master()
File "/usr/lib64/python3.4/site-packages/pkg_resources/__init__.py", line 651, in _build_master
    ws.require(__requires__)
File "/usr/lib64/python3.4/site-packages/pkg_resources/__init__.py", line 952, in require
    needed = self.resolve(parse_requirements(requirements))
File "/usr/lib64/python3.4/site-packages/pkg_resources/__init__.py", line 839, in resolve
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'ordereddict' distribution was not found and is required by jira

[dbaxa]

Perhaps it is time to drop support for python 2.5, 2.6, 3.0, 3.1, 3.2. That is, perhaps it is time to only support python 2.7.X and python 3 >= 3.3.