HDF5 Repository Changed.

[r-b-w]

I tried to build this image from scratch, but it failed here, asking for an username.

git clone https://bitbucket.hdfgroup.org/scm/hdffv/hdf5.git

It appears that the HDFGroup is moving has moved their projects to github.
The HDF5 repo is now at

https://github.com/HDFGroup/hdf5.git