Fix compatibility with Python==3.6 (#10)

* Update setup.py

Setuptools does not relies on "requirements.txt" anymore

* [FIX] Fix exception for Python==3.6

Fix #9

[v2.0.3] Release v2.0.3

    izitest is now able to resolve a command's path so you don't have to
    give it an absolute path anymore

 Release v2.0.2

* Fix #7

The problem was indeed caused by setup.py

* Implement #6

Bug fix & enhancements (#5)

* Update doc to remove useless pages

* Fix #3 and implement #4

* Release v2.0.1

Release v2.0.0

This version is the same as v2.0.0a1

Release v2.0.0.a1 (#2)

Release v2.0.0.a1 with almost a full rewrite of the code (it breaks compatibility with previous versions).

v2.0.0.a1 comes with a new feature: an HTML report generation!

[v1.0.2] Release v1.0.2

[v1.0.1] Release v1.0.1

[v0.1] Release initial version