* serf.h: Comment out the serf 2.0 connection API.
* serf.h: Comment out the serf 2.0 connection API.

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