relax SVN archive

The DMG image file is now being sent to the parent directory '..' rather than the base directory.

This fixes the problem of the DMG file packaging itself into relax.app/Contents/Resources, creating
a 120 Mb file rather than a 60 Mb file!!!

Bug fix for Mac OS X - attempt at killing the Carbon.Evt.TickCount problem by removing argv emulation.

See https://mail.gna.org/public/relax-users/2012-04/msg00004.html
(Message-id: <CAED9pY9U7fqqj=Oq6UyCKV-+zw-Py-9kkq-X-eUnmpseegk9vQ@...>),
https://mail.gna.org/public/relax-users/2012-03/msg00047.html
(Message-id: <15983F01-ECC5-4C70-BC56-5D07A903C489@...>) and other messages in these
threads.

The suggestion from
http://stackoverflow.com/questions/3461983/evt-tickcount-not-found-with-python2-6-on-osx-10-6-3 was
used, where the py2app 'argv_emulation' option is set to false. For this to work in relax, the
command line argument parsing had to be turned off and default values set in the Relax() instance
namespace.

The scons binary_dist target on Mac OS X can now overwrite a pre-existing DMG file.

This is just an argument to the Mac hdiutil program.

Added the Bruker logo to later include on http://www.nmr-relax.com/links.html.

This will be for a link to the Bruker Dynamics Center.

Small fix for the http://www.nmr-relax.com/features.html page.

Removed 2 unused directories in the website repository.

HTML fixes for the http://www.nmr-relax.com/events.html page.

The problems were found using the W3C validator.

Added a top menu to the http://www.nmr-relax.com/communication.html page.

Added a top menu to the http://www.nmr-relax.com/screenshots.html page.

Added a top menu to the http://www.nmr-relax.com/features.html page.