2012-12-01  Jonathan duSaint  <jon@rockgeeks.net>
	* gtviewer.c: Added math.h include. Added *.tif, *.tiff file
	filter.
	* configure.in: Check for geotiff headers in /usr/include/geotiff, too.
2006-12-20  Jonathan duSaint  <jon@rockgeeks.net>
	* gtviewer.c: Changed seconds macro as per Tom Cumming's fix.
2006-03-29  Jonathan duSaint  <jon@rockgeeks.net>
	* gtviewer.c: Coding, except for printing and help browser invocation,
	which require Gnome, is complete.