Converted README.md to long_desc

[sroopsai]

1. Converted README to long_description
2. Replaced version='?' with version='1.7.4+1.0.0'
3. Switched from distutils.core to setuptools to avoid Userwarning long_description_content_type not available.

[sroopsai]

AttributeError: 'PosixPath' object has no attribute 'read_text' using Python 3.4 because pathlib.Path.read_text is introduced in Python 3.5. Should think an alternative

[codecov-io]

Codecov Report

Merging #70 into develop will not change coverage. The diff coverage is n/a.

@@           Coverage Diff            @@
##           develop      #70   +/-   ##
========================================
  Coverage    62.09%   62.09%           
========================================
  Files            7        7           
  Lines         1385     1385           
========================================
  Hits           860      860           
  Misses         525      525

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[ensonic]

Sorry, I completely missed PR. Thanks for updating this!