Merge branch 'hdf5-h5' into 'master'

Makes sure we can load/save files with arbitrary extensions

See merge request !8
5 jobs for master in 59 minutes and 32 seconds (queued for 66 minutes and 36 seconds)
Status Job ID Name Coverage
  Build
passed #129126
docker
build_linux_27

00:31:41

passed #129127
docker
build_linux_36

00:29:54

passed #129128
macosx
build_macosx_27

00:27:30

passed #129129
macosx
build_macosx_36

00:27:01

 
  Deploy
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deployer
deploy_beta

00:00:20