v0.2.0

ClimaComms v0.2.0

Diff since v0.1.1

Closed issues:

• Gather interface (#11)

Merged pull requests:

• MPI.Finalize is called automatically by MPI.jl (#14) (@simonbyrne)
• Change the layout in ClimaComms to a Dict of pid => Neighbor objects. (#15) (@sriharshakandala)