relax SVN archive

The restoration of the data from BMRB files into data pipes is now fully tested in the system tests.

The relaxation data reading is functional again, matching the new design of bmrblib.

The saveframe description for the relax scripts now says that they are relax scripts.

The spectrometer frequency is now converted to MHz before being sent to BMRBlib.

Fixes for the citations BMRB writing.

The author structure is now split up before sending to the saveframe class.

The reading of entity information from the BMRB file is fixed.

The prolate diffusion tensors are now correctly created from the BMRB files.

The diffusion tensor bmrb_read() function is now complete and the tensor is being created.

Advancements for the diffusion tensor support in the BMRB file.

All of the tensor data is now being written out, and a very incomplete bmrb_read() function has been
added.

Removed the BMRB NMR-STAR v3.2 system test and started to add data checks for the old and new pipes.