Write setup.py

setup.py now contains information about the project rather than just the
default stuff.
Merge pull request #9 from erget/edit_setup

Write setup.py
Fix 10: Points with equal coordinates are now equal.
Merge pull request #11 from erget/10_equal_points

Fixes 10: Points with equal coordinates are now equal.
Merge branch 'master' into 7_unit_tests
Refactor for PEP8 compliance