server.
* wrap/python/cgi-bin/ltl2tgba.in: Starts a web server if the
script is not called as a CGI. Arrange to load libraries from
the build directory. Create the spotimg/ if needed when run as
a web server.
* wrap/python/cgi-bin/Makefile.am: Adjust build rule and clean
the spotimg directory.
* wrap/python/cgi-bin/README, NEWS: Update.