- It is now more portable and may be used outside of GnuPG
- vfat file systems are now supported.
- The use of link(2) is more robust.
- Wrote extensive documentation.
We better do this once and for all instead of cluttering all future
commits with diffs of trailing white spaces. In the majority of cases
blank or single lines are affected and thus this change won't disturb
a git blame too much. For future commits the pre-commit scripts
checks that this won't happen again.