Feature/add unicode style#29

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tducret wants to merge 3 commits intokxxoling:masterfrom

tducret:feature/add-unicode-style

Commits on Dec 13, 2018

Added a new style : UNICODE (nice rendering in the terminal, with clean border)
tducret
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Fix encoding problems encountered with Python 2.7
tducret
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Commits on Dec 27, 2018

Update to push 0.9.3 on Pypi
tducret
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