Python 3 Transition Environments

Phase 1: Upgrade CMake to 3.14

PR: Upgrade CMake to 3.14

Install cmake=3.14 and eman-deps=15.1.

Phase 2: Test Boost 1.64

PR: Upgrade Boost to 1.64

Phase 3: Test Boost 1.66

PR: Build with Boost versions 1.65-1.66

Python 3 Environments (Coming Soon!)

Coming soon!