BIG change in how images are read in.
the read header routines now all accept an optional extras string parameter.
and in HDF5images.ipf, you can set this to "EscanOnly:1;" to read in only those meta data needed by the Fill_Q_Positions( ) routine.  This speeds it up a lot.
The other image reading routines also had to be modified to accept the extras parameter, although they don't use it yet. Also the LoadHDF5imageFile( ) also accepts extras="noHeader:1" to suppress reading any header info when loading an image.