We're trying to stay up to date on virtualenv releases so we don't fall
too far behind and so we can leverage new features, such as wheels.
This virtualenv release features upgrades to pip (1.4.1 to 1.5.4) and
setuptools (0.9.8 to 2.2). These may fix bugs people are encountering
in the wild.
Tarball obtained from
https://pypi.python.org/packages/source/v/virtualenv/virtualenv-1.11.4.tar.gz#md5=9accc2d3f0ec1da479ce2c3d1fdff06e.
the egg-info directory was removed (consistent with previous virtualenv
upgrades).
The following commits were cherry-picked from virtualenv's Git
repository from the develop branch:
0da2c50eafbf6841afad078e04aa873780905b99
e1ec5f3b9f5c3cfa533f5ce440d7ac251c14ad7d
da95f04065328a98d16bcad1e9ad0e89f3a41ebe
These should hopefully be part of virtualenv 1.8.3, whenever it is
released.
