Colorclass

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Added
* Publishin wheels

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Added
* ``disable_if_no_tty()`` function to conditionally disable colors when STDERR and STDOUT are not streams.

Changed
* Colors enabled by default always, like it was before v2.0.0.

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Fixed
* Printing box drawing characters on Windows from Python 2.6.

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Added
* ``keep_tags`` boolean keyword argument to Color(). Prevents colorclass from parsing curly brackets.
* Automatically skip replacing stderr/stdout streams on latest Windows 10 versions with native ANSI color support.

Changed
* Refactored most of windows.py.
* Background color determined from either stderr or stdout, instead of just one stream (e.g. piping stderr to file).

Fixed
* https://github.com/Robpol86/colorclass/issues/16
* https://github.com/Robpol86/colorclass/issues/18

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Added
* Python 3.5 support.
* ``enable_all_colors()``, ``is_enabled()``, and ``is_light()`` toggle functions.
* Library can be used as a script (e.g. ``echo "{red}Red{/red}" |python -m colorclass``).
* Ability to add/multiply Color instances just like str.
* Ability to iterate a Color instance and have each character keep its color codes.

Changed
* Converted library from Python module to a package.
* ``set_light_background()`` and ``set_dark_background()`` no longer enable colors. Use ``enable_all_colors()``.
* Colors are disabled by default when STDERR and STDOUT are not streams (piped to files/null). Similar to ``grep``.
* Reduce size of ANSI escape sequences by removing codes that have no effect. e.g. ``\033[31;35m`` to ``\033[35m``.
* Color methods that return strings now return Color instances instead of str instances.

Fixed
* https://github.com/Robpol86/colorclass/issues/15
* https://github.com/Robpol86/colorclass/issues/17

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Added
* Convenience single-color methods by `Marc Abramowitz <https://github.com/msabramo>`_.