Remove multi objective support

This release removes support for multi objective problems, and ensures that every problem returns a single double on evaluation.

v0.3

Update setup.py

Bugfix for setup.py

v0.2.9.2

Update setup.py

Bugfix for setup.py

v0.2.9.1

Update setup.py

Auto release for python package

v0.2.8.7

Update python-publish.yml