Made a debugging print properly conditional. Made the s in configure.in use full path names so that autoconf does not need to be invoked with any arguments. Rationalised code which puts version number into about string. Tested with a line longer than 1024 chars. The Licence button now pops up a window which shows the GPL in a text widget.
Text is loaded at runtime from the installed doc dir.
Fixed bugs which broke compile on systems which need the included gettext. Fixed various minor bugs. Removed the test initial values of variables in the Preferences. Main window can resize down vertically. Moved icons and test stuff into their own directories.