* refactored openssl command invocations to avoid using pipes, in order to be able   to work on Windows, too N.B.: testing on Windows is going to come next ...
* refactored openssl command invocations to avoid using pipes, in order to be able
  to work on Windows, too
N.B.: testing on Windows is going to come next ...

otrs-xx/otrs,otrs-xx/otrs,otrs-xx/otrs,otrs-xx/otrs