Fix variable scope (#2)

* Fix variable scope

* Update __init__.py

Author: unformatt

django_admin_json_editor/__init__.py

@@ -1,3 +1,3 @@
 from .admin import JSONEditorWidget  # noqa
 
-__version__ = '0.2.9'
+__version__ = '0.2.10'

django_admin_json_editor/templates/django_admin_json_editor/editor.html

@@ -3,6 +3,9 @@
 <div id="{{ name }}_editor"></div>
 
 <script>
+var {{ js_name }}_editor;
+var {{ js_name }}_changees = 0;
+
 addEventListener("DOMContentLoaded", (event) => {
     var container = document.getElementById("{{ name }}_editor");
     var options = {
@@ -11,10 +14,6 @@
         schema: {{ schema|json_dumps }}
     };
 
-    var {{ js_name }}_editor;
-
-    var {{ js_name }}_changees = 0;
-
     function {{ js_name }}_init(container, options) {
         {{ js_name }}_changees = 0;
         JSONEditor.defaults.options = {{ default_options|json_dumps }};