v0.3.1

ClimaComms v0.3.1

Diff since v0.3.0

Merged pull requests:

• hardcode tag max (#19) (@simonbyrne)
• remove reference to Neighbor (#20) (@simonbyrne)
• Add allreduce and allreduce! functions to interface. (#23) (@sriharshakandala)
• bump versions, increase MPI.jl compat (#25) (@simonbyrne)