0.7.0

Added

• HDF5 C library can now be built from source and linked in statically, enabled
  via hdf5-sys/static feature (as of this release, the version of the bundled
  sources of HDF5 is 1.10.6). CMake is required for building. For further
  details, see the docs for hdf5-sys.
• Thanks to static build option, the documentation will now be built on
  docs.rs; if it builds successfully, this
  will be the official documentation source from now on.
• Add support for HDF5 1.12 on all platforms and include it in CI.

Changed

• Switched CI from Travis/AppVeyor to GitHub Actions; for each pull request, we
  now run around 30 concurrent builds which provides with a much wider coverage
  than previously and has already revealed some issues that have been fixed.
  Platforms covered: macOS 10.15, Windows Server 2019, Ubuntu 16.04/18.04/20.04;
  HDF5 installation methods covered: conda, apt, homebrew, also official
  binaries on Windows. We now also test MPI versions of the library for
  both MPICH and OpenMPI on macOS / Linux.

Fixed

• We now force the variable-length allocator that HDF5 uses when reading data
  to use libc::malloc and libc::free, so that they can be deallocated
  properly by VarLenString and VarLenArray in hdf5-types. Previously,
  this could cause a rare but serious failure for Windows builds when the
  default allocator used for vlen types by HDF5 was not matching the
  libc deallocator.
• Use std::panic::catch_unwind in all cases where we use extern C callbacks,
  so that they are panic-safe.
• Reader::read_raw and Reader::read_slice should now be Drop-safe in the
  event where the read operation fails and the destination type is not trivial.