relax SVN archive

MS Windows bug fix for the pipe editor window.

The wx.Yield() call has been removed from the update_grid() method as it causes a
wx._core.PyAssertionError on Windows.

Bug fix for racing in the GUI on MS Windows when the relax prompt window is open.

This was caught in the test suite, and only affects MS Windows. Now a wx.CallAfter() call is used
to enable the GUI element.

The GUI interpreter thread flush() method no longer hangs the thread.

The sleep calls are now outside of the interpreter thread object, avoiding the sleeping of the
thread. This was causing the test suite in MS Windows to permanently hang.

With debugging turned on, the relax test suite no longer captures the IO streams.

This will allow for better debugging of racing in the GUI tests on MS Windows.

Bug fix for the GUI interpreter thread flushing on MS Windows.

The Queue.empty() method is documented as being unreliable - and that is indeed the case on MS
Windows (not on GNU/Linux or Mac OS X though). It sometimes returns false, continually, when the
queue is completely empty!!!

Now the queue user function __repr__ strings are stored in a list to keep track of the queue status.

Added the new sys_info modules to the __all__ package lists to let the unit tests pass.

Bug fix for the failure of loading a relax state.

The relax data store GUI structure was being removed prior to loading the state, and then not being
reinitialised if that state loading failed.

A lot of bug fixes for MS Windows with the handling of the busy cursor.

All calls to wx.EndBusyCursor() are preceded by a check via wx.IsBusy(). For some reason, in
contrast to other operating systems, MS Windows will sometimes turn off the busy cursor by itself.
A subsequence call to wx.EndBusyCursor() results in an error.

Another attempt at fixing the status bar on MS Windows.

The previous fix did not work all of the time, so hopefully this one will :S

Fixed a bug on MS Windows for the 'Close all analyses' menu entry and toolbar button.

The sequence of internal events is very different on Windows compared to Mac OS X and GNU/Linux,
and not everything had been processed before everything was deleted resulting in updates to dead
GUI elements.