handling to x509.c

`openssl' and second, the shortcut symlinks for the `openssl <command>' are no
longer created. This way we have a single and consistent command line
interface `openssl <command>', similar to `cvs <command>'.

Notice, the openssl.cnf, openssl.c and progs.pl files were changed after a
repository copy, i.e. they still contain the complete file history.

zero unused bits.

(including if user presses ^C)

1. The already released version was 0.9.1c and not 0.9.1b

2. The next release should be 0.9.2 and not 0.9.1d, because
   first the changes are already too large, second we should avoid any more
   0.9.1x confusions and third, the Apache version semantics of
   VERSION.REVISION.PATCHLEVEL for the version string is reasonable (and here
   .2 is already just a patchlevel and not major change).
tVS: ----------------------------------------------------------------------