Inside summarylist(), it's possible for myglsa.packages.keys() to contain

Inside summarylist(), it's possible for myglsa.packages.keys() to contain
unicode objects, which trigger and exception like this:

   File "//usr/lib64/portage/pym/portage/dep.py", line 535, in __init__
    obj_setattr(self, x, getattr(s, x))
   AttributeError: 'unicode' object has no attribute '__eq__'

To solve this problem, convert unicode objects to plain str before passing
them to the portage api.

svn path=/main/trunk/; revision=12667