Upgrade version 1.4 - IntraMessenger

In version 1.4, many options names have been changed.
You have to modify options names in file /common/config/config.inc.php :

Before Now (version 1.4)
$c_lang _LANG
$c_nb_max_user _MAX_NB_USER
$c_nb_max_session _MAX_NB_SESSION
$c_nb_max_contact_by_user _MAX_NB_CONTACT_BY_USER
$c_option_col_level_hide _USER_HIEARCHIC_MANAGEMENT_BY_ADMIN : inverse !
$c_option_flag_country _DISPLAY_USER_FLAG_COUNTRY
$c_del_user_after_x_days_not_use _OUTOFDATE_AFTER_X_DAYS_NOT_USE
$c_option_nb_row_by_page _NB_ROWS_PER_PAGE
$c_option_check_new_msg_every _CHECK_NEW_MSG_EVERY
$c_statistics _STATISTICS
$c_login_is_usernamePC _FORCE_USERNAME_TO_PC_SESSION_NAME
$c_option_allow_conference _ALLOW_CONFERENCE
$c_option_allow_invisible _ALLOW_INVISIBLE
$c_option_can_change_contact_nickname _ALLOW_CHANGE_CONTACT_NICKNAME
$c_option_send_offline _ALLOW_SEND_TO_OFFLINE_USER
$c_option_force_away _FORCE_AWAY_ON_SCREENSAVER
$c_minimum_length_of_username _MINIMUM_USERNAME_LENGTH
$c_password_user _USER_NEED_PASSWORD
$c_minimum_length_of_password _MINIMUM_PASSWORD_LENGTH
$c_option_auto_add_user _ALLOW_AUTO_ADD_NEW_USER_ON_SERVER
$c_option_need_admin_after_add _PENDING_NEW_AUTO_ADDED_USER
$c_option_need_admin_if_chang_check _PENDING_USER_ON_COMPUTER_CHANGE
$c_option_crypt_msg _CRYPT_MESSAGES
$c_user_cannot_history_messages _ALLOW_USER_TO_HISTORY_MESSAGES : inverse !
$c_option_log_messages _LOG_MESSAGES
$c_option_log_session_open _LOG_SESSION_OPEN
$c_option_site_url _SITE_URL_TO_SHOW
$c_option_site_title _SITE_TITLE_TO_SHOW
$c_option_opencommunity _SPECIAL_MODE_OPEN_COMMUNITY
$c_option_groupcommunity _SPECIAL_MODE_GROUP_COMMUNITY
$c_pass_im_book _IM_ADDRESS_BOOK_PASSWORD
$c_option_lock_contact_list _LOCK_USER_CONTACT_LIST
$c_option_lock_options _LOCK_USER_OPTIONS
$c_option_col_name_hide _HIDE_COL_FUNCTION_NAME
$c_password_for_private_server _PASSWORD_FOR_PRIVATE_SERVER
_AUTHENTIFICATION_ON_DOTPROJECT _AUTHENTICATION_ON_DOTPROJECT
_AUTHENTIFICATION_ON_EGROUPWARE _AUTHENTICATION_ON_EGROUPWARE
_AUTHENTIFICATION_ON_OVIDENTIA _AUTHENTICATION_ON_OVIDENTIA
_AUTHENTIFICATION_ON_SMF _AUTHENTICATION_ON_SMF
_AUTHENTIFICATION_ON_ACHIEVO _AUTHENTICATION_ON_ACHIEVO
$c_autentification_on_dolibarr _AUTHENTICATION_ON_DOLIBARR
$c_autentification_on_phenix_agenda _AUTHENTICATION_ON_PHENIX
$c_autentification_on_phpnuke _AUTHENTICATION_ON_PHPNUKE
$c_autentification_on_joomla _AUTHENTICATION_ON_JOOMLA
$c_autentification_on_phorum _AUTHENTICATION_ON_PHORUM
$c_autentification_on_vBulletin _AUTHENTICATION_ON_VBULLETIN
$c_autentification_on_phpBB_2 _AUTHENTICATION_ON_PHPBB_2