Enable debug information in Windows builds of test programs.
Enable debug information in Windows builds of test programs.

* serf.mak
  (serf_get.exe, serf_request.exe): Add /DEBUG parameter to linker.

TommyU/serf,idomon/serf,muthusuba/serf,blueszhangsh/serf,wzugang/serf,idomon/serf,wzugang/serf,Manouchehri/serf,justinweb/serf,krime/serf,muthusuba/serf,sworda/serf,liuzongquan/serf,krime/serf,idomon/serf,krime/serf,idomon/serf,sworda/serf,muthusuba/serf,TommyU/serf,wzugang/serf,wzugang/serf,muthusuba/serf,Manouchehri/serf,Manouchehri/serf,blueszhangsh/serf,sworda/serf,justinweb/serf,justinweb/serf,Manouchehri/serf,liuzongquan/serf,liuzongquan/serf,liuzongquan/serf,blueszhangsh/serf,blueszhangsh/serf,TommyU/serf,sworda/serf,krime/serf,TommyU/serf,justinweb/serf