Added additional strings for quiz export

lang/en/quiz.php

@@ -74,6 +74,10 @@ $string['editingshortanswer'] = 'Editing a Short-Answer question';
 $string['editingtruefalse'] = 'Editing a True/False question';
 $string['editquestions'] = 'Edit questions';
 $string['errorsdetected'] = '$a error(s) detected';
+$string['exportfilename'] = 'quiz';
+$string['exportname'] = 'File name';
+$string['exportnameformat'] = '%%Y%%m%%d-%%H%%M';
+$string['exportquestions'] = 'Export questions to file';
 $string['false'] = 'False';
 $string['feedback'] = 'Feedback';
 $string['fileformat'] = 'File format';
@@ -121,6 +125,7 @@ $string['numerical'] = 'Numerical';
 $string['paragraphquestion'] = 'Paragraph Question not supported at line $a. The question will be ignored';
 $string['percentcorrect'] = 'Percent Correct';
 $string['publish'] = 'Publish';
+$string['publishedit'] = 'You must have permission in the publishing course to add or edit questions in this category';
 $string['qti'] = 'IMS QTI format';
 $string['question'] = 'Question';
 $string['questioninuse'] = 'The question \'$a\' is currently being used:';