Revision 1126431

Merged revision 1126426 from trunk

   Fix timing issues in the doc PUT multipart/related API

   Two issues were present:

   1) the handler replied to the request before the multipart parser consumed
     all the request's data, causing a subsequent request in the same connection
     to consume the remaining data from the multipart/related request;
   2) the data function passed to the multipart parser could consume, and
     discard, all or part of the data from a subsequent request in the same
     connection.

   This closes COUCHDB-1174.