Re: new sieve draft

Section 0.3 notes that "support" and "reply" have been removed, but Section 7
still says

   Any extensions to this language MUST define a string that uniquely
   identifies that extension.  If a new version of an extension changes
   the functionality of a previously defined extension, it MUST use a
   different name.  The purpose of such a string is for the "support"
   test, which mandates that script requires the use of that extension.