Fix installation issues on Windows

[agateau]

• Port from distutils to setuptools (was about time!)
• Replace relative imports with absolute imports
• Rename doxyqml/doxyqml.py to doxyqml/main.py to avoid confusions
• Remove the bin/doxyqml and bin/fromsrc.py since they are no longer needed
  with setuptools

This should fix #32

[coveralls]

Pull Request Test Coverage Report for Build 64

• 4 of 8 (50.0%) changed or added relevant lines in 3 files are covered.
• 68 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-8.6%) to 79.34%

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Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
doxyqml/main.py	0	4	0.0%

Files with Coverage Reduction	New Missed Lines	%
doxyqml/qmlparser.py	23	75.69%
doxyqml/qmlclass.py	45	61.79%

Totals
Change from base Build 50:	-8.6%
Covered Lines:	1371
Relevant Lines:	1728

---

💛 - Coveralls

[coveralls]

Pull Request Test Coverage Report for Build 60

• 4 of 8 (50.0%) changed or added relevant lines in 3 files are covered.
• 68 unchanged lines in 2 files lost coverage.
• Overall coverage decreased (-31.7%) to 56.25%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
doxyqml/main.py	0	4	0.0%

Files with Coverage Reduction	New Missed Lines	%
doxyqml/qmlparser.py	23	75.69%
doxyqml/qmlclass.py	45	61.79%

Totals
Change from base Build 50:	-31.7%
Covered Lines:	243
Relevant Lines:	432

---

💛 - Coveralls

[mpaperno]

Worked well for me! 👍 I pulled the branch, and just ran setup.py from the repo root folder. Only minor confusion for me was that it now installs in Scripts folder.

I had to add the python Scripts folder to my PATH, but maybe that's a default option during python install anyway, really not sure at this point (many Python installs over the years).

[agateau]

Yes, I think the Scripts folder is in %PATH% by default, but that is worth adding to the README. Will do so.