relax SVN archive

Continued the implementation of the XEasy support system test.

Much more work is needed, though.

Corrected the formatting of a few lines...

Made sure that the relaxation curve fitting time point is stored as a float.

The relaxation curve time point can now be an integer to allow the time of '0'.

See the post at https://mail.gna.org/public/relax-devel/2008-10/msg00040.html (Message-id:
<7f080ed10810141213s2211d36fre56906e0ae5903e2@...>).

Added a RelaxError to tell the user that the Modelfree4 version being used is buggy.

It also tells them that they must upgrade!

Corrected two typos.

These were discovered by Edward d'Auvergne in a post at:
https://mail.gna.org/public/relax-devel/2008-10/msg00041.html (message ID:
7f080ed10810141215r72940a18hc09456a02d3f69ce@...)

Added an XEasy peak list, with peak heights as volumes, into the test suite data store.

Added the support of unassigned peaks in Sparky formatted peak lists.

The unassigned peak show up as '?-?'.

Thanks to Ryan Hoffman and his bug report (https://gna.org/bugs/?11913).

Added the support for when a nmrview peak list contains unassigned peaks.

These peaks have an assignment field as '{}' in the peak list and are now excluded.

Complemented the peak list sample accordingly.

Modified the test_palmer_omp() system test to take into account the bugs fixed in Modelfree 4.20.