Fix missing "showtags" string

htdocs/lang/en.utf8/mahara.php

@@ -41,6 +41,7 @@ $string['default'] = 'Default';
 $string['upload']  = 'Upload';
 $string['complete']  = 'Complete';
 $string['loading'] = 'Loading ...';
+$string['showtags'] = 'Show my tags';
 $string['errorprocessingform'] = 'There was an error with submitting this form. Please check the marked fields and try again.';
 
 $string['no']     = 'No';

htdocs/lib/web.php

@@ -307,6 +307,7 @@ function jsstrings() {
                 'requiredfieldempty',
                 'unknownerror',
                 'loading',
+                'showtags',
                 'unreadmessages',
                 'unreadmessage',
                 'couldnotgethelp',