Hide deprecated HDF5 API
Hide deprecated HDF5 API

On Ubuntu 12.04, despite the HDF5 version being 1.8.x, the default
HDF5 API is the 'compatibility' API from HDF5 v1.6.x.
Declaring H5_NO_DEPRECATED_SYMBOLS fixes this.

chrisemblhh/nexus,nexusformat/code,chrisemblhh/nexus,chrisemblhh/nexus,nexusformat/code,nexusformat/code,chrisemblhh/nexus,nexusformat/code,chrisemblhh/nexus,nexusformat/code