Changes:
- Use internal functions rather than libc versions in a couple of places
This allows writing to dirs without read perms and the
ftpconversions file to work.
- Fix up skey support to use correct parameters
- using compress in the ftpconversions file doesn't seem to work,
so alter example ftpconversions file to use gzip -d rather than compress -dc
- Install manpages compressed
Still broken :
- using /bin/compress to compress/uncompress files on the fly
