relax SVN archive

This new pipe bundling concept is simply a way of grouping data pipes together. This will be useful
for:

- Grouping and categorisation of data pipes when multiple analyses are performed.

- The model-free dauvergne_protocol auto-analysis will place all the data pipes it creates into one
bundle.

- For the GUI mode, analyses will be linked to pipe bundles rather than data pipes. This will allow
switching data pipes to activate the correct analysis.