Description of problem:
On startup, yumex tries to read repo information and then a traceback is thrown.

Version-Release number of selected component (if applicable):
yumex.noarch 0:3.0.1-1.fc15
pexpect.noarch 0:2.3-5.fc14

How reproducible:
Everytime

Steps to Reproduce:
1. Start yumex
  
Actual results:
Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/yumexbackend/yum_server.py", line 1314, in dispatcher
    self.parse_command(args[0], args[1:])
  File "/usr/lib/python2.7/site-packages/yumexbackend/yum_server.py", line 1242, in parse_command
    self.get_packages(args[0], args[1])
  File "/usr/lib/python2.7/site-packages/yumexbackend/yum_server.py", line 71, in newFunc
    return func(*args, **kwargs)
  File "/usr/lib/python2.7/site-packages/yumexbackend/yum_server.py", line 509, in get_packages
    ygh = self.doPackageLists(pkgnarrow=narrow, showdups=show_dupes)
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 2254, in doPackageLists
    for (n,a,e,v,r) in self.up.getUpdatesList():
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 878, in <lambda>
    up = property(fget=lambda self: self._getUpdates(),
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 702, in _getUpdates
    self._up = rpmUtils.updates.Updates(self.rpmdb.simplePkgList(), self.pkgSack.simplePkgList())
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 859, in <lambda>
    pkgSack = property(fget=lambda self: self._getSacks(),
  File "/usr/lib/python2.7/site-packages/yum/__init__.py", line 645, in _getSacks
    self.repos.populateSack(which=repos)
  File "/usr/lib/python2.7/site-packages/yum/repos.py", line 260, in populateSack
    self.doSetup()
  File "/usr/lib/python2.7/site-packages/yum/repos.py", line 72, in doSetup
    self.ayum.plugins.run('prereposetup')
  File "/usr/lib/python2.7/site-packages/yum/plugins.py", line 184, in run
    func(conduitcls(self, self.base, conf, **kwargs))
  File "/usr/lib/yum-plugins/auto-update-debuginfo.py", line 117, in prereposetup_hook
    enable_debuginfo_repos(yb, conduit)
  File "/usr/lib/yum-plugins/auto-update-debuginfo.py", line 42, in enable_debuginfo_repos
    for opt, repoexp in opts.repos:
AttributeError: Values instance has no attribute 'repos'