fixed for python-apt 0.8 (debian wheezy)

python-apt 0.8:
  "The old API that was deprecated in 0.7.100 is no longer available."
fixed typo
Adding my version of a yum update check
Merge pull request #3 from magicboom/patch-1

fixed for python-apt 0.8 (debian wheezy)
Update README
Update apt
Update apt
Merge pull request #1 from sts/master

pull from master