Fix compiler warnings using gcc 4.6.

src/core/auth.c

@@ -26,12 +26,10 @@
 static int check_cmd_bool(const char* cmd, struct linked_list* list, char* line, int line_count)
 {
 	char* data;
-	char* data_extra;
 	
 	if (!strncmp(line, cmd, strlen(cmd)))
 	{
 		data = &line[strlen(cmd)];
-		data_extra = 0;
 		data[0] = '\0';
 		data++;
 		

src/core/hub.h

@@ -119,7 +119,7 @@ struct hub_info
 #endif
 
 #ifdef SSL_SUPPORT
-	SSL_METHOD* ssl_method;
+	const SSL_METHOD* ssl_method;
 	SSL_CTX* ssl_ctx;
 #endif /*  SSL_SUPPORT */
 };