patch request


hbcurl:      

  HB_CURLOPT_STDERR - implemented verbose log to a chosen file
  added HB_CURLOPT_HTTPPOST_VALUE: like HB_CURLOPT_HTTPPOST but using values instead of files

hbregex.c: added missing HBREG_DOTALL functionality

hbwin.hbp : workaround : hb ole server opt in to prevent clashes when using  static library in a dll
I see your point, passing a file pointer to a dll you could possibly have an undefined behavior since FILE internally could change between compilers.
My tests passed because I recompiled both harbour and libcurl with the same compiler version.
Command line redirection isn't a solution either for a text only interactive application 
Neverthless this is a good debug tool, so I will keep the change in my own repository for now, since you don't accept either compilation flags or "do it at your own risk" warnings in the main source tree