relax SVN archive

Added the relax 2.2.1 PDF manual to the repository.

Changed the version number to 2.2.1.

Updated the release checklist to include the devel_scripts/log_converter.py script usage.

Merged the relax version 2.2.1 CHANGES file back to trunk.

The command used was:
svn merge -r18365:18366 svn+ssh://bugman@.../svn/relax/tags/2.2.1 .

Updated the CHANGES file for version 2.2.1.

relax version 2.2.1.

This is a quick bugfix release solving a number of issues uncovered since the 2.2.0 release.

Another fix for the new Bmrb.test_bug_20471_structure_present system test.

Modified the bmrb.read documentation to make it clearer that the data pipe must be empty.

Fix for the Bmrb.test_bug_20471_structure_present system test.

The bmrb.read user function call should and does raise a RelaxError.

Merged revisions 18358-18360 via svnmerge from
svn+ssh://bugman@.../svn/relax/trunk

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r18358 | bugman | 2013-02-01 16:53:34 +0100 (Fri, 01 Feb 2013) | 3 lines

Created the Bmrb.test_bug_20471_structure_present to catch bug #20471 (https://gna.org/bugs/?20471).
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r18359 | bugman | 2013-02-01 17:03:20 +0100 (Fri, 01 Feb 2013) | 7 lines

Fix for bug #20471 (https://gna.org/bugs/?20471).

The problem was that the data pipe is_empty() method was not handling structural data correctly.
The is_empty() method now belongs to the MolContainer objects rather than cdp.structure, and the
object cdp.structure is not always present.
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r18360 | bugman | 2013-02-01 17:04:27 +0100 (Fri, 01 Feb 2013) | 7 lines

Fix for bug #20471 (https://gna.org/bugs/?20471).

The problem was that the data pipe is_empty() method was not handling structural data correctly.
The is_empty() method now belongs to the MolContainer objects rather than cdp.structure, and the
object cdp.structure is not always present.
........