HDF5 handler 1.5.1 Released

I have released a bug fix update for the HDF5 Handler. This update includes fixes for the new H5.IgnoreUnknowTypes option and some (rare) uses of the varying length string type.

In some cases the  did not correctly ignore (really elide) 64-bit intergers when the H5.IgnoreUnknowTypes option was set. That's been fixed. At the same time, the set of things that the option applies to has been expanded to include certain types of errors that the HDF5 API will flag as fatal but really aren't. For example, if a variable has been added to a file as a kind of placeholder but has no size, this will be flagged as an error by HDF5. When H5.IgnoreUnknownTypes is true, the handler will ignore that error. This is a bit of a stretch for an option that calls itself 'Ignore Unknown Types' since this case is not an 'Unknown Type', but I thought it was better not to introduce a new option for so closely-related a case.

Also included in the update is a fix for HDF5 attribtues that use the varying length string data type. In some cases attributes of that type had garbage for values. 

See the Hyrax download page.