Ubuntu has abolished /usr/bin/python, change shebang to python3.
Fixes the bug that was directing help lookups incorrectly. Renames the old "help()" function to "mayday()" to match the new command. Fixes display bugs in curses due to generation of wacky quotes, nonbreak spaces, and dashes. Does not fix problems with forms-drawing characters.
Fix an extremely obscure bug in the help generation. It was triggered by non-breaking space in xmlto output.
% has to be mapped to %% when producing sst.doc ...otherwise printf does unhelpful things.
merge the autotools branch