Upgrade peep.py from version 1.0.1 to 1.1.0

CHANGE LOG

1.1
-Support Python 3.

1.0.2
-Add support for .tar.bz2 archives.

1.0.1
-Fix error (which failed safe) installing packages whose distro names contain underscores. (C
Merge pull request #16 from vivekkiran/patch-1

Upgrade peep.py from version 1.0.1 to 1.1.0