jQuery erros tags.val(...) is undefined + conflicts with other scripts

Well, autotagging issue was resolved following https://www.drupal.org/node/2204311 instructions (old variable_get 'opencalais_autotagging' instead of new 'opencalais_settings').
I'm not very familiar with patches but there are just 4 occurrences in openclais.module, so instead of waiting when I could provide one (if I do it), someone can go on making it faster :

//    $auto = variable_get('opencalais_autotagging', array());
  $settings = variable_get('opencalais_settings', array());
  $auto = (array_key_exists('autotagging', $settings)) ? $settings['autotagging'] : array();

The problem is still there if "Collect Tags into Vertical Tab" is checked, but I think this is an issue with jquery code not with php one.

Perhaps I didn't described the issue correctly and it is not easy to reproduce, but this error remains.
I disabled some modules (radioactivity, field_group, og) that I suspected conflicting with open_calais but this didn't change anything, the error was still there. The main effect are:
- tags are not inserted in their fields even they appear as suggestions (event if I enter them manually they are not saved, so perhaps something has to do also with the presave hook)
- Wysiwyg is not toggle enable/disable rich text editor is not displayed (disabling open_calais brings back Wysiwyg editor)
So it seems the problem is coming from open_calais.
It seems like this error (in opencalais.node.js line 33)

TypeError: tags.val(...) is undefined
if (tags.val().indexOf(keyword) != -1) {

prevents other javascript to be read.

The problem doesn't happen in all content types but I could figure out why. I tried changing field's order with no result but I think something has to do with the order js files are read or loaded. At http://stackoverflow.com/questions/5006045/jquery-val-is-undefined there is an explanation "You probably included your JavaScript before the HTML" but that didn't helped.
Please leave this issue opened

The "tags.val(...) is undefined" error is generated by function opencalais_form_node_form_alter on node types having multilingual option enabled (admin/structure/types/manage/[node type] > Publishing options) and also using entity_translation module.

around line 130 (function opencalais_form_node_form_alter) we have:

    $vars = array(
      'type' => $opencalais_type,
      'field_name' => $field_name,
      'suggestions' => $suggestions,
      'language' => $form['language']['#value']
//      'language' => $form[$field_name]['#language']
    );

    $themed_suggestions = theme('opencalais_suggestions', $vars);

The commented line is mine and it makes it work.

then in opencalais_suggestions.tpl around line 10 we have :

$for = 'edit-' . strtr(drupal_strtolower($field_name . '-' . $language), array(' ' => '-', '_' => '-', '[' => '-', ']' => ''));

the $for is used to create the 'for' attribute of suggestion label which then is parsed by jquery in order to insert tags in the appropriate fields. In some cases $language is undefined and makes javascript blocking any later code.

In case mulitlingual option is enabled $form['language']['#value'] doesn't exist but we have access to $form['language']['#default_value']. $form['language']['#default_value'] is not a good option either because fields may be translatable or not (by entity_translation module or others) and result to the same language as the form language or remain to the LANGUAGE_NONE ('und') language. So we have to deal the language for each field separately and not give to all them the $form['language']['#value']. Otherwise the call to theme('opencalais_suggestions', $vars) will result to javascript errors.

More detailed discussion in my other issue which appears to have the same origin :
https://www.drupal.org/node/2556131

It works ! with 7.x-1.3+3-dev (2016-Aug-31). Thank you ElusiveMind !