Commits
Merge pull request #570 in HDFFV/hdf5 from ~LRKNOX/hdf5_lrk:hdf5_1_8 to hdf5_1_8 * commit 'c8499b192638da0f0eef9544d830f0df959cc76f': Reset default build mode to enable-production=no. Update h5vers and release scripts for 1.8.19 branch, set version to 1.8.19-pre1. Note: changes to these scripts were brought from develop/hdf5_1_10 and modified for 1.8 version differences. Update HDF5 version to 1.8.20-snap0. Update HL .so number for added API function.