commit 3ccd4d0b6e018892a8d6f12bc59d11db9b5e0fa8
Merge: ae3ea44 18f74bc
Author: Rinat Ibragimov <ibragimovrinat@mail.ru>
Date:   Sun Mar 12 02:11:00 2017 +0300

    Merge branch 'dev'
    
    * Add some default values if client passes -1 in buffer attributes for
      a stream;
    * Ask client for data only if we are ready to get at least minreq bytes.
    
    Although minreq is described as "minimum request" in API documentation,
    Firefox seem to be expecting to be called back on every minreq byte
    chunk. Larger amount returned result in degraded frames per second
    count.
