Pyg

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+ Fixed :file:`setup.py`: added the ``zip-safe`` flag.

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+ 29: Create bundles from requirements files.
+ 30: Keep track of why requirements are needed.
+ 31: Replace :command:`uninstall` and :command:`rm` with a new :command:`remove` command.
+ 32: Follow links in :file:`dependency_links.txt` file.
+ 33: Fix option :option:`--index-url`.
+ 34: ``pyg remove yourself``.
+ 36: Add ``virtualenv`` support.
+ 38: Add :option:`-A, --upgrade-all` option for the :command:`install` command.
+ 39: Add :option:`-e, --exclude` option for the :command:`bundle` command.

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+ Fixed an issue with the :mod:`subprocess` module.

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+ 19: Added :class:`pyg.inst.Bundler`: now Pyg can create bundles!
+ 20: Installation from binaries (on Windows).
+ 22: Support a config file somewhere.
+ 25: Link following: when a package does not have any file on PyPI, Pyg have to follow links (e.g. package's home page, etc.) to find download links.
+ 26: Added Pyg Shell.

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+ Fixed :file:`setup.py`: didn't create Eggs properly.

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+ Fixed :file:`setup.py`: Setuptools didn't save requirements correctly.