Log message:
Updated py-virtualenv to 15.0.3.

15.0.3 (2016-08-05)

    Test for given python path actually being an executable file, #939
    Only search for copy actual existing Tcl/Tk directories (PR #937)
    Generically search for correct Tcl/Tk version (PR #926, PR #933)
    Upgrade setuptools to 22.0.5

Log message:
ship virtualenv with PYVERSSUFFIX so pkg_alternatives can find it

Log message:
Switch to MASTER_SITE_PYPI.

Log message:
Updated py-virtualenv to 15.0.2.

15.0.2 (2016-05-28)

    Copy Tcl/Tk libs on Windows to allow them to run, fixes #93 (PR #888)
    Upgrade setuptools to 21.2.1.
    Upgrade pip to 8.1.2.

Log message:
Update py-virtualenv to 15.0.1.

Changes: the usual updates.

Log message:
Update py-virtualenv to 15.0.0.

15.0.0 (2016-03-05)

    Remove the virtualenv-N.N script from the package; this can no longer be \ 
correctly created from a wheel installation. Resolves #851, #692
    Remove accidental runtime dependency on pip by extracting certificate in the \ 
subprocess.
    Upgrade setuptools 20.2.2.
    Upgrade pip to 8.1.0.

Log message:
Update py-virtualenv to 14.0.6.

14.0.6 (2016-02-07)
-------------------

* Upgrade setuptools to 20.0

* Upgrade wheel to 0.29.0

* Fix an error where virtualenv didn't pass in a working ssl certificate for
  pip, causing "weird" errors related to ssl.

Log message:
Update py-virtualenv to 14.0.5:

14.0.5 (2016-02-01)
-------------------

* Homogenize drive letter casing for both prefixes and filenames. :issue:`858`

14.0.4 (2016-01-31)
-------------------

* Upgrade setuptools to 19.6.2

* Revert ac4ea65; only correct drive letter case.
  Fixes :issue:`856`, :issue:`815`

Log message:
Update py-virtualenv to 14.0.3. All self tests pass.

14.0.3 (2016-01-28)
-------------------

* Upgrade setuptools to 19.6.1

14.0.2 (2016-01-28)
-------------------

* Upgrade setuptools to 19.6

* Supress any errors from `unset` on different shells (:pull:`843`)

* Normalize letter case for prefix path checking. Fixes :issue:`837`

Log message:
Update py-virtualenv to 14.0.1:

14.0.1 (2016-01-21)
-------------------

* Upgrade from pip 8.0.0 to 8.0.2.

* Fix the default of ``--(no-)download`` to default to downloading.

14.0.0 (2016-01-19)
-------------------

* **BACKWARDS INCOMPATIBLE** Drop support for Python 3.2.

* Upgrade setuptools to 19.4

* Upgrade wheel to 0.26.0

* Upgrade pip to 8.0.0

* Upgrade argparse to 1.4.0

* Added support for ``python-config`` script (:pull:`798`)

* Updated activate.fish (:pull:`589`) (:pull:`799`)

* Account for a ``site.pyo`` correctly in some python implementations (:pull:`759`)

* Properly restore an empty PS1 (:issue:`407`)

* Properly remove ``pydoc`` when deactivating

* Remove workaround for very old Mageia / Mandriva linuxes (:pull:`472`)

* Added a space after virtualenv name in the prompt: ``(env) $PS1``

* Make sure not to run a --user install when creating the virtualenv (:pull:`803`)

* Remove virtualenv file's path from directory when executing with a new
  python. Fixes issue :issue:`779`, :issue:`763` (:pull:`805`)

* Remove use of () in .bat files so ``Program Files (x86)`` works :issue:`35`

* Download new releases of the preinstalled software from PyPI when there are
  new releases available. This behavior can be disabled using
  ``--no-download``.

* Make ``--no-setuptools``, ``--no-pip``, and ``--no-wheel`` independent of
  each other.