relax SVN archive

Bug fix for the switching between analysis tabs on MS Windows.

The tab had not been changed when on_page_change() was being called (in contrast to GNU/Linux and
Mac OS X). Now wx.EVT_NOTEBOOK_PAGE_CHANGED is being used to bind the page change event rather than
wx.EVT_NOTEBOOK_PAGE_CHANGING.

The peak list and relaxation data GUI element pop up menus are now disabled with the execution lock.

This will prevent weird bugs.

Bug fix for the structure.vectors user function back end.

The check for already existing vector info now should work.

Fix for the results viewer window on MS Windows.

The user functions now have the results viewer window set as the parent so that the window is not
hidden by the main GUI window coming to the front.

Fix for the pipe editor window on MS Windows.

The user functions now have the pipe editor window set as the parent so that the window is not
hidden by the main GUI window coming to the front.

Fixes for the residue.create and spin.create user function GUI pages on MS Windows.

The default values are now correctly set. This affects the pop up menu in the tree part of the spin
viewer window.

Created a data structure for the user function GUI pages for holding the default values.

This will be used to remove an MS Windows bug where combo boxes are reset to nothing.

Fixes for the user functions launched from the tree part of the spin viewer window on MS Windows.

The spin viewer window is now set as the parent, so that the main GUI window does not come to the
front.

The user functions in the spin viewer window now have the parent window correctly set.

This is to help with an MS Windows window ordering bug.

The spin viewer window is now properly maximised on MS Windows.