Wdocker

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Added

- Support for supplying "program arguments" that are appended to the command
- Support for other filenames then Dockerfile in Parser object
- Colored output of commands/variables on TTY's (if ansicolors_ is installed)

.. _ansicolors: https://pypi.python.org/pypi/ansicolors

Changed

- Search for Dockerfile in parent folders until one is found or ``/`` is
reached, if one cannot be found in the current directory. Always run
commands from the path where the Dockerfile is located.

Fixed

- Message "Variables: No variables defined in Dockerfile (yet)" is removed
- AttributeError when wdocker is run outside of environment

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Added

- This CHANGELOG
- Internal command ``-version`` for displaying version information
- Support for full shell commands like ``docker foo exec ip addr | grep 172``

Fixed

- Internal commands not displaying with -help when there is no Dockerfile
- Handle error when variable is called but not defined

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Added

- Initial release