patch to fix pgadmin1.8.4 build on Solaris 10.

Hello,

While building pgadmin 1.8.4 on Solaris 10, I encountered following error.

"./debugger/dbgPgConn.cpp", line 97: Error: INADDR_NONE is not defined.
gmake[2]: *** [dbgPgConn.o] Error 1

This seems to be a known problem with Solaris10.
I prepared a patch based on how the same issue is worked around in
'pgadmin/db/pgConn.cpp' and it is attached here.

please feel free to comment/review the same.

cheers
Mayuresh

Index: pgadmin/debugger/dbgPgConn.cpp
===================================================================
--- pgadmin/debugger/dbgPgConn.cpp    (revision 7390)
+++ pgadmin/debugger/dbgPgConn.cpp    (working copy)
@@ -26,8 +26,13 @@
 #include <arpa/inet.h>
 #include <netdb.h>
 #include <netinet/in.h>
+
+#ifndef INADDR_NONE
+#define INADDR_NONE (-1)
 #endif

+#endif
+
 ////////////////////////////////////////////////////////////////////////////////
 // dbgPgConn constructors
 //