allow handlersocket on FreeBSD, fix getaddrinfo problem

plugin/handler_socket/CMakeLists.txt

 
-IF(WIN32 OR CMAKE_SYSTEM_NAME MATCHES "FreeBSD")
+IF(WIN32)
   # Handlersocket does not compile on Windows, compiles but does 
   # not start on FreeBSD.  
   RETURN()

plugin/handler_socket/libhsclient/auto_addrinfo.hpp

@@ -35,7 +35,7 @@ struct auto_addrinfo : private noncopyable {
   int resolve(const char *node, const char *service, int flags = 0,
     int family = AF_UNSPEC, int socktype = SOCK_STREAM, int protocol = 0) {
     reset();
-    addrinfo hints;
+    addrinfo hints = { };
     hints.ai_flags = flags;
     hints.ai_family = family;
     hints.ai_socktype = socktype;