v0.18.0

MPI v0.18.0

Diff since v0.17.2

Closed issues:

• Count arguments of Scatterv etc. should be Int, not Cint (#153)
• MPI.Gatherv! should only require counts for root (#362)
• MPI.Datatype() creates new instance on every MPI.Put() (#462)
• An example that uses Scatterv (#468)
• An example on how to Scatterv! and Gatherv! a two-dimensional array? (#469)

Merged pull requests:

• add basic error handler functionality (#457) (@simonbyrne)
• use Buffers with one-sided ops (#464) (@simonbyrne)
• Fix one-argument in-place Alltoall! (#465) (@mtsch)
• docstrings for one-sided operations (#466) (@joachimbrand)
• loosen type restrictions on one-sided buffers (#467) (@simonbyrne)
• Add Scatterv example based on #469 (#470) (@simonbyrne)
• Improve Datatype handling (#471) (@simonbyrne)