Minor bug fixes on v2.9

What's Changed

• Fix GenEff when CompServo is 0 by @dzalkind in #372
• Docs by @dzalkind in #368
• Update install.rst by @jnsburke in #393
• Add mpi_tools to rosco by @dzalkind in #400
• Check for prior initialization of ROSCO by @dzalkind in #401
• ability to load rosco yaml on rank 0 alone by @dzalkind in #409
• Catch divide-by-zero error in wind speed estimator by @dzalkind in #410

New Contributors

• @jnsburke made their first contribution in #393

Full Changelog: v2.9.4...v2.9.5