[hpsdr] W5WC's improvements

[h-hartfuss at t-online.de]

Hi all,
on behalf of many happy users here in Germany I like to thank Doug,
W5WC, for the continuous improvements he is introducing into PowerSDR,
in particular
for the most recent integration of the Collapse functionality (revision
1974):

svn://svn.openhpsdr.org/svn/repos_sdr_hpsdr/trunk/W5WC/Beta_Release/PowerSDR_1.19.3.4

Great work, Doug!
Hans, DL2MDQ.