v2.6
Move all source and header files into src/
Copyright notice updates
Fix the "patch would create" fix from 2009-03-28
Clarify the message when (part of) a hunk cannot be merged
patch -Z not working if timestamp contains seconds > 59.5
Try to preserve the owning group of patched files
Allow special characters in filenames read interactively
Preserve timestamps in reject files
When copying files, use full_write() from gnulib instead of write()