Seventh cut

Fixes #1, #2, #3, #6

Adds a context feature to the config sub command so you can have multiple contexts

scripts/knotctl

@@ -175,6 +175,8 @@ def setup_url(
             zone += "."
         url += "/{}".format(zone)
     if name and zone:
+        if name.endswith(zone.rstrip(".")):
+            name += '.'
         url += "/records/{}".format(name)
     if zone and name and rtype:
         url += "/{}".format(rtype)