relax SVN archive

Fix for the failed loading of states in the GUI.

This problem was caught by the State.test_bug_20480 GUI test. If the loading of a state file fails,
sometimes the relax data store can contain partial information from that file. Now if the loading
fails in the GUI, relax is reset.

Created the State.test_bug_20480 system test to catch bug #20480 (https://gna.org/bugs/?20480).

This bug was reported by Stanislava Panova (https://gna.org/users/stacy). The file
test_suite/shared_data/saved_states/bug_20480.bz2 is the same as that attached to the bug report but
with all residues except for 9 and 10 deleted.

Currently the bug is not triggered!

Merged revisions 18398 via svnmerge from
svn+ssh://bugman@.../svn/relax/trunk

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r18398 | bugman | 2013-02-02 17:17:24 +0100 (Sat, 02 Feb 2013) | 3 lines

Added a module docstring for the main relax module.
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Merged revisions 18395-18397 via svnmerge from
svn+ssh://bugman@.../svn/relax/trunk

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r18395 | bugman | 2013-02-02 17:09:30 +0100 (Sat, 02 Feb 2013) | 3 lines

Addition of the generic_fns package docstring.
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r18396 | bugman | 2013-02-02 17:09:39 +0100 (Sat, 02 Feb 2013) | 3 lines

Whitespace cleanup.
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r18397 | bugman | 2013-02-02 17:15:44 +0100 (Sat, 02 Feb 2013) | 3 lines

Docstring additions.
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Added a module docstring for the main relax module.

Docstring additions.

Whitespace cleanup.

Addition of the generic_fns package docstring.

Merged revisions 18389-18393 via svnmerge from
svn+ssh://bugman@.../svn/relax/trunk

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r18389 | bugman | 2013-02-02 15:56:54 +0100 (Sat, 02 Feb 2013) | 3 lines

Added and edited a number of module docstrings.
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r18390 | bugman | 2013-02-02 16:00:37 +0100 (Sat, 02 Feb 2013) | 3 lines

Module and package docstrings additions/improvements for the SCons scripts.
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r18391 | bugman | 2013-02-02 16:02:08 +0100 (Sat, 02 Feb 2013) | 3 lines

Removed some useless code.
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r18392 | bugman | 2013-02-02 16:23:04 +0100 (Sat, 02 Feb 2013) | 3 lines

Lots of module and package docstring updates for the analysis specific code.
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r18393 | bugman | 2013-02-02 16:46:16 +0100 (Sat, 02 Feb 2013) | 3 lines

Module docstring additions and improvements for the relax data store modules.
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Module docstring additions and improvements for the relax data store modules.