switch to use DESTDIR instead of INSTALL_ROOT (patch from Samuli Suominen)
renamed aux directory to tools (makes life easier for Windows users)
updated bundled tools from Automake v1.11
some tweaks to XMP marker and CVS support
update docs with new options
update version to 1.3.1
bumb date to release date
close input as soon as possible
use stat() instead of fopen() to check if file exists already
removed temp file usage for optimization and added stdin/stdout support
make temp file creation bit safer on platforms withouth mkstemps()
cleanup global variables
cleanup line buffer handling
display also libjpeg version when --version is used
ignore also "printed" man pages
minor cleanup
improved stdin/stdout support
preserve file group when possible
added --strip-none option and cleaned up marker handling
code cleanup and remove dependency on dirent.h