Always use version generated by `setup.py`. Better version generation.
Added tag 2.0.0-alpha1 for changeset cb1ed436642c
Ignore `setuptools` build directory.
Fix `setuptools` install.
Added tag 2.0.0-alpha1 for changeset ecee3e8f35e5
Fix package name case.
Added tag 2.0.0-alpha1 for changeset 8f988aa54433