relax SVN archive

Added a separator between the 'Tools->Test suite->Full test suite' menu item and the individual categories.

Renamed 'Tools->Test suite->All tests' to 'Tools->Test suite->Full test suite'.

The ds.relax_gui GUI data object is now a permanent feature of the relax data store.

This is in preparation for attempting the almost impossible task of making the GUI tests work within
the GUI!

The relax test-suite runner code can now handle the different categories from the GUI menus.

This runs very differently to the command line mode of the test-suite, so needs a different
solution.

Missing RelaxError import!

The 'Tools->Test suite' menu item has been converted into a sub-menu.

Now there are entries for running all tests, or the individual categories.

Big bug fix for the installation path for the relax Mac OS X application.

The path to the application Resources folder, where all the relax data files are located, is now set
to the install path. The relax.py module was also overwriting the value set in the status singleton
and now this no longer occurs.

Created the _det_install_path() status singleton method for better determining the install path.

This will be used for the Mac OS X applications whereby the current logic of using sys.path[0]
fails miserably!

Reverted r15781, as this is no longer required.

The command used was:
$ svn merge -r15781:r15780 .

.....
r15781 | bugman | 2012-04-18 18:14:16 +0200 (Wed, 18 Apr 2012) | 6 lines
Changed paths:
M /1.3/setup.py

Shifted the build and dist directories out of the relax base directory.

This is for the Mac OS X application building, and is to prevent the 'dist' directory from being
recursively copied into itself. This seems to be a recently introduced bug.
.....

Prepared the multi-processor package for the import mechanisms of Python 3.

This new mechanism is present in Python 2.7 now, and the code falls back to the old method when not
present.