Fix manifest to comply with ynh 2.4 style

The shift to 2.4 is not finished though ; still TODO :

- backup/restore scripts
- use of the helpers ?
- remove deprecated yunohost commands

manifest.json

@@ -1,21 +1,28 @@
 {
     "name": "I Hate Money",
     "id": "ihatemoney",
+    "packaging_format": 1,
     "description": {
         "en": "A simple shared budget manager web application",
         "fr": "Une application web de comptes partagés à plusieurs"
     },
-    "licence": "BSD custom beerware",
+    "url": "http://ihatemoney.org/",
-    "developer": {
+    "license": "free",
+    "maintainer": {
         "name": "Jocelyn Delalande",
         "email": "jocelyn@crapouillou.net",
         "url": "http://jocelyn.delalande.fr"
     },
-    "multi_instance": "false",
+    "requirements": {
+        "yunohost": ">= 2.4"
+    },
+    "multi_instance": false,
+    "services": ["nginx", "mysql", "postfix"],
     "arguments": {
         "install" : [
             {
                 "name": "domain",
+                "type": "domain",
                 "ask": {
                     "en": "Choose a domain for ihatemoney",
                     "fr": "Choisir un domaine pour ihatemoney"
@@ -24,6 +31,7 @@
             },
             {
                 "name": "path",
+                "type": "path",
                 "ask": {
                     "en": "Choose a path for ihatemoney",
                     "fr": "Choisir un chemin pour ihatemoney"
@@ -33,12 +41,12 @@
             },
             {
                 "name": "is_public",
+                "type": "boolean",
                 "ask": {
                     "en": "Is it a public website ? (even if service is public, each project is protected by a password)",
                     "fr": "Le service est-il public ? (même dans ce cas, chaque projet est protégé par un mot de passe)"
                 },
-                "choices": ["Yes", "No"],
+                "default": true
-                "default": "Yes"
             }
         ]
     }

scripts/install

@@ -88,7 +88,7 @@ sudo ln -s /etc/ihatemoney/settings.py /opt/yunohost/ihatemoney/src/budget/setti
 
 
 # If app is public, add url to SSOWat conf as skipped_uris
-if [ "$is_public" = "Yes" ];
+if [[ "$is_public" -ne 0 ]];
 then
     sudo yunohost app setting $app unprotected_uris -v "/"
 fi

scripts/upgrade

@@ -1,5 +1,23 @@
 #!/bin/bash
 set -e
+app=$YNH_APP_INSTANCE_NAME
+
+# Source YunoHost helpers
+. /usr/share/yunohost/helpers
+
+# Optionaly upgrade arg to typed boolean form
+
+is_public=$(ynh_app_setting_get "$app" is_public)
+if [[ "$is_public" = "" ]];
+then
+    if [ $public_site = "No" ];
+    then
+        is_public=0
+    else
+        is_public=1
+    fi
+    ynh_app_setting_set "$app" is_public "$is_public"
+fi
 
 # Upgrade code
 sudo cp -r ../sources/ /opt/yunohost/ihatemoney/src/