CRM-10760 : improving the checking done for chinese specific values - by checking default civicrm language is chinese or not

The issue for 'delay' (property of autocomplete field) breaking is due to introduction of  <code>onChange(0, true);</code> which you can see at <code>line no. 202 packages/jquery/plugins/jquery.autocomplete.js </code> also a warning comment has been put above that code snippet about 'delay' break .

This code was introduced for CRM-6135 issue break fix (chinese character search not triggering) .