Export functions with capital letters in .def file on Windows.
Export functions with capital letters in .def file on Windows.

Patch by: Alexander Thomas

* build/gen_def.py
  (_funcs): Update regular expression to match capital letters.

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