Require pandas 1.0
This release is a cleanup of the dependencies to require pandas 1.0+, so that we can lower the surface area of potential errors/environments solved for. Other PRs were to the development environment files and should have no impact on end-users.
Relevant PRs:
Pin Jenkins to 5.1 temporarily (#299)
Update pandas to 1.0 (#298)
Change mapd reference to omnisci reference (#300)