New protocol v3 : include pkdbf2 level

Remove hashtable from firefox addon
Rework firefox addon
Add pkdbf2_level as a preference (hidden)

server/conf.php

@@ -0,0 +1,41 @@
+/*
+  Copyright (C) 2013-2014 Grégory Soutadé
+  
+  This file is part of gPass.
+  
+  gPass is free software: you can redistribute it and/or modify
+  it under the terms of the GNU General Public License as published by
+  the Free Software Foundation, either version 3 of the License, or
+  (at your option) any later version.
+  
+  gPass 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.
+  
+  You should have received a copy of the GNU General Public License
+  along with gPass.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+<?php
+/*
+  User interface display or not ciphered passwords. Set to false avoid database leakage by user interface (but not by raw HTTP request).
+ */
+$VIEW_CIPHERED_PASSWORDS=true;
+
+/*
+  Allows user creation
+ */
+$ADMIN_MODE=true;
+
+/*
+  Number of iterations for PKDBF2 algorithm.
+  Minimum recommended level is 1000, but you can increase
+  this value to have a better security (need more computation
+  power).
+
+  !! Warning !! This impact master keys. So if you change
+  this value with existings masterkeys, they will unusable !
+ */
+$PKDBF2_LEVEL=1000;
+?>