Andrew Biggs pointed out a "Expect: 100-continue" flaw where libcurl didn't

send the whole request at once, even though the Expect: header was disabled
by the application. An effect of this change is also that small (< 1024
bytes) POSTs are now always sent without Expect: header since we deem it
more costly to bother about that than the risk that we send the data in
vain.

RELEASE-NOTES

@@ -29,6 +29,6 @@ New curl mirrors:
 This release would not have looked like this without help, code, reports and
 advice from friends like these:
 
- Domenico Andreoli, Armel Asselin, Gisle Vanem, Yang Tse
+ Domenico Andreoli, Armel Asselin, Gisle Vanem, Yang Tse, Andrew Biggs
 
         Thanks! (and sorry if I forgot to mention someone)