relax SVN archive

Added the Bruker PDC (or now DC) to the http://www.nmr-relax.com/links.html webpage.

This is in response to Klaus-Peter Neidig's (neidig att bruker dott de) message at
https://mail.gna.org/public/relax-users/2012-04/msg00011.html (Message-id:
<4F7AE13B.6010309@...>).

The Mf.test_write_results system test now works with the newer Python 2.7.3 version.

The final_results_trunc_1.3_new.bz2 file was updated to be a results file rather than save state,
and the system test itself now checks the Python version and then loads the correct results file for
that version.

Added a new version of the truncated OMP results relax state file.

From Python version 2.7.3 (and the equivalent 3.x versions), the XML toprettyxml() output has been
changed to not wrap the value in newline characters! See line 258 of the Python change log at
http://hg.python.org/cpython/file/d46c1973d3c4/Misc/NEWS#l276. This change affects one of the relax
system tests.

Fix for the setuptools RelaxError for when the extension is unknown.

Pyreadline download link fix on the http://www.nmr-relax.com/download.html webpage.

Docstring completion for the ansi.enable_control_chars() function.

ANSI control characters are now suppressed on MS Windows.

The characters are useless in both the PowerShell and cmd. Therefore the
ansi.enable_control_chars() helper function has been created to replace the sys.std*.isatty() calls
throughout relax.

Fix for the information print out on MS Windows.

The 'file' command is not present on Windows systems.

The GUI tests now work in the GUI!!

This is thanks to a lot of GUI black magic. The tests' tearDown() method now carefully deconstructs
the GUI element prior to the next test being run. In the normal 'relax --gui-test' mode, the GUI
object is destroyed and recreated for each test. However when run from the GUI, the GUI object is
always there and must remain intact. Some of the careful deconstruction includes the deletion of
each analysis tab, the selective destruction of all non-main windows (excluding the controller which
shows the test suite progress). The relax data store GUI object is also reconstructed in the
tearDown() method, and all wx events flushed at the very end to prevent clashes with the next GUI
test.

The relax mode (i.e. prompt, script, GUI, test suite, etc.) is now stored in the status object.

This will be used to activate and deactivate certain parts of the GUI tests within the GUI and
normal test suite modes.