Pr9 py2k future import

Originally from https://bitbucket.org/agr/ropemode/pull-request/9

@pmcnr, any more comments on this?

Adding comments from Bitbucket:
By @jagguli
Debugger entered--Lisp error: (error "Python: Traceback (most recent call last): File \"/home/steven/.local/lib/python3.3/site-packages/Pymacs.py\", line 201, in loop value = eval(text) File \"<string>\", line 1, in <module> File \"/home/steven/.local/lib/python3.3/site-packages/Pymacs.py\", line 429, in pymacs_load_helper module = import(module_name) File \"/home/steven/.local/lib/python3.3/site-packages/ropemacs-0.8a1-py3.3.egg/ropemacs/init.py\", line 6, in <module> File \"./ropemode/decorators.py\", line 6, in <module> from rope.base import exceptions ImportError: No module named 'rope' ") sig

By @pmcnr
The following is working for me:
```
$ pip3.3 install --user --upgrade https://bitbucket.org/pmcnr/ropemode/branch/default
$ pip3.3 install --user --upgrade https://bitbucket.org/pmcnr/ropemacs/branch/default
```
I would just note that we really don’t reasonable support for py3k (its analysis), see discussion at https://github.com/python-rope/rope/issues/57