relax SVN archive

Created the lib.list.unique_elements() function for returning a list with duplicates removed.

Fix for the spectrum.error_analysis user function for replicated spectra and subsets.

A second call to spectrum.error_analysis was removing the results from the first call. This is now
avoided.

Fixes for the renaming of the relaxation dispersion test suite shared data directory.

Combined all the system test scripts of Flemming Hansen's fixed time period CPMG data.

For details of this data, see http://thread.gmane.org/gmane.science.nmr.relax.devel/3790/focus=3827.

Updated the dispersion system test script for Flemming Hansen's data.

This script should now be close to the final form for a relaxation dispersion analysis of CPMG data
with a fixed relaxation time period.

Merged revisions 19474,19483 via svnmerge from
svn+ssh://bugman@.../svn/relax/trunk

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r19474 | bugman | 2013-04-13 18:25:14 +0200 (Sat, 13 Apr 2013) | 5 lines

Added a warning for the spectrum.read user function if a peak intensity of zero is encountered.

This value can cause singular matrix failures in certain optimisation.
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r19483 | bugman | 2013-04-16 10:51:48 +0200 (Tue, 16 Apr 2013) | 6 lines

The spectrum.error_analysis user function can now be performed on a subset of all spectra.

The subset argument has been added to allow the error analysis to be restricted to a subset of all
loaded spectral data.
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The spectrum.error_analysis user function can now be performed on a subset of all spectra.

The subset argument has been added to allow the error analysis to be restricted to a subset of all
loaded spectral data.

The relax_disp.cpmg_frq user function can now handle values of None.

The float function is no longer used if the value of None is encountered.

The relax_disp.cpmg_delayT backend can now handle the 'cpmg fixed' experiment type.

Expanded the relax_disp.exp_type user function to include the fixed period CPMG experiments.