Fix more compiler warnings.
Fix more compiler warnings.

* test/MockHTTPinC/MockHTTP.c
  (serializeArrayOfIovecs, serializeHeaders, serializeRawBody,
   serializeRequest, serializeRequestMatch): Make them static functions to
    silence compiler complaining about lack of declartion (technically
    serializeArrayofIovecs had a forward declaration so it produced no warning
    but it's not used anywhere else anyway).

lazysoez/serf,zhupan/serf,zhupan/serf,google-code-export/serf,pengdu/serf,yesoce/serf,soufianeEL/serf,x-clone/serf,zhengcq315/serf,pengdu/serf,lazysoez/serf,stoneCC/serf,soufianeEL/serf,google-code-export/serf,stoneCC/serf,SirJson/serf,alex1818/serf,soufianeEL/serf,google-code-export/serf,soufianeEL/serf,SirJson/serf,alex1818/serf,x-clone/serf,stoneCC/serf,zhengcq315/serf,KyleSanderson/serf,google-code-export/serf,yesoce/serf,x-clone/serf,alex1818/serf,zhengcq315/serf,lazysoez/serf,lazysoez/serf,alex1818/serf,pengdu/serf,zhengcq315/serf,SirJson/serf,zhupan/serf,zhupan/serf,yesoce/serf,KyleSanderson/serf,yesoce/serf,pengdu/serf,KyleSanderson/serf,stoneCC/serf,SirJson/serf,x-clone/serf,KyleSanderson/serf