Deploy instructions

• Edit setup.py and bump up the version number (e.g. 0.1.0.rc3)
• Commit the bumped version number to master
• Create a tag with the release name and push it (e.g. git tag 0.1.0.rc3 && git push origin 0.1.0.rc3)
• On Github, update the new release with some release notes. Include major new features and bug fixes.
• Locally create a packaged version (python setup.py sdist)
• Upload the latest package to PyPI (twine upload dist/gpytorch-<version_number>.tar.gz)