removing french readme (...) too old, updating the english one a little, starting a small code convention doc

.gitattributes

@@ -1,6 +1,7 @@
 * text=auto !eol
 /.svnignore -text
 .tx/config -text
+/CODING_CONVENTION.php -text
 /COPYING -text
 /README -text
 aide/bin/build.sh -text

CODING_CONVENTION.php

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+
+Coding Convention
+----------------
+
+We are using the following coding convention
+
+Graphically
+----------------
+
+The classes are structured like that.
+texts prefixed by "##" are comments to explain the convention with an example. Do not use them in your code. 
+
+<?php
+## The header below is on every head of php file use current year instead of 2012. ##
+/*
+ ----------------------------------------------------------------------
+ AlternC - Web Hosting System
+ Copyright (C) 2000-2012 by the AlternC Development Team.
+ https://alternc.org/
+ ----------------------------------------------------------------------
+ LICENSE
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License (GPL)
+ as published by the Free Software Foundation; either version 2
+ of the License, or (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ GNU General Public License for more details.
+
+ To read the license please visit http://www.gnu.org/copyleft/gpl.html
+ ----------------------------------------------------------------------
+ Purpose of file: Manage mailing-lists with Mailman
+ ----------------------------------------------------------------------
+*/
+## Enter the purpose of this file up there ^^ ##
+
+## the name of the class is the same as the file (m_dom, m_mailman...) ##
+class m_mailman {
+
+
+## 2 blank lines here and between each functions, give it some space ;) ##
+## the following line of -- allow you to visually quickly find a function ##
+## then the comment after it is using /** notation, so that phpdoc can build a self-made documentation of our classes ##
+  /* ----------------------------------------------------------------- */
+  /** ## here we put a full long description of the function's behavior, in english ##
+   * ## this description may span multiple lines ##
+   * @param $domain string ## each param has its @param line, followed by the param name ($domain) type (string) and description ##
+   * @return array ## a @return line is added when the function returns anything, followed by the returned type and description ##
+   */
+  function enum_ml($domain = null, $order_by = array('domain', 'list')) {
+## function which consist of more than one word are separated by _ ##
+## private functions are prefixed by "private" and their name starts by "_" ##
+    global $err,$db,$cuid;
+## use the globals for $db (database mapper), $cuid (uid of current alternc's user) $err (error/log mapper) 
+    $err->log("mailman","enum_ml");
+## when calling an important function, log it that way ##
+## when raising an error, use the following syntax ##
+    $err->raise("classname",_("text in english"));
+  }
+
+## at the end of a php-only file, we don't put a ?> ##
+
+?>
+
+Syntax in code :
+----------------
+
+  function names starting by "hook_" are hooks called that way:
+
+global $hooks;
+$res=$hooks->invoke("hook_class_method_name",array($param1,$param2));
+
+$params1 & 2 are sent as parameters to the hooked functions of each files.
+
+the hook function name must have the CALLING class name after hook_ 
+like hook_admin_del_member for a hook in "admin" class.
+
+$res is an array with the returned data as values, for each function called in a class. 
+The key in that array is the classname called.
+