Collate list of Third Party Open Source software #834
correct the case of the acknowledgements HTML-ID
insert missing graphic reference
Merge pull request #903 from debrief/Issue834_listofsoftwares

Issue834 listofsoftwares
by default, we should install samples for new users
explain/demo Create Project dialog at startup.
minor tidying, to introduce the Create Project dialog.
provide freq tracks as xml
Merge pull request #904 from debrief/issue874_DPF_final

Issue874 dpf final
delete spare XML file
include the tutorial, it's not easy to generate.