[patch] Matlab IO

[Jules Bergmann]

This patch

  - Cleans up parts of the matlab IO interface.  In particular,
     - fixes endian issues with the iterator interface,
     - fixes confusion about writing version,
     - adds informative exceptions on failures
     - adds comments on file format
     - minor renaming for coding standards compliance

  - Extends the matlab_bin_file test to also read pre-canned .mat
    files in little- and big-endian format.

  - Adds a lsmat utility to list contents of a matlab file through
    the iterator interface.

Ok to apply?

				-- Jules

-- 
Jules Bergmann
CodeSourcery
jules at codesourcery.com
(650) 331-3385 x705
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