DNS views, part 21 (6 of 6)

Issue #26
Program: dnsreadprol/dnswriteprol

This commit provides:
- second argument (view) to these programs
- removed interactive behaviour of dnswriteprol:
    it no longer displays difference and asks
    for confirmation when a zone changes.
    Now, the user *must* know what she is doing
- translation of messages and comments
- syntax-error no longer quits (call "d error" method
    instead)