Fix email and add --help

ada/buildsupport.adb

@@ -1462,6 +1462,11 @@ procedure BuildSupport is
          then
             Imported_Routines.C_Set_Debug_Messages;
 
+         elsif Ada.Command_Line.Argument (J) = "--help"
+           or else Ada.Command_Line.Argument (J) = "-h"
+         then
+            Usage;
+
          else
             Set_Str_To_Name_Buffer (Ada.Command_Line.Argument (J));
             FN := Ocarina.Files.Search_File (Name_Find);

ada/buildsupport_utils.adb

 --  *************************** buildsupport ****************************  --
---  (c) 2015 European Space Agency - maxime.perrotin@esa.int
+--  (c) 2008-2017 European Space Agency - maxime.perrotin@esa.int
 --  LGPL license, see LICENSE file
 
 with Ada.Text_IO;
@@ -30,8 +30,8 @@ package body Buildsupport_Utils is
 
    procedure Banner is
       The_Banner : constant String :=
-        "buildsupport - contact: maxime.perrotin@esa.int or "
-        & "ttsiodras@semantix.gr "
+        "buildsupport - contact: Maxime.Perrotin@esa.int or "
+        & "Thanassis.Tsiodras@esa.int "
         & ASCII.LF & ASCII.CR
         & "Based on Ocarina: " & Ocarina.Configuration.Ocarina_Version
         & " (" & Ocarina.Configuration.Ocarina_SVN_Revision & ")";