first attempt
Merge branch 'master' into 01-1-email_each_checkmark
Merge branch '01-checkmark_detail_info' into 01-1-email_each_checkmark
Merge branch '01-checkmark_detail_info' into 01-1-email_each_checkmark
alfa version - can send detail email

Signed-off-by: semteacher <semteacher@gmail.com>
detail email feature - beta:
1. Options added
2. Database option field added
3. access control added
4. Option strings and help added

Signed-off-by: semteacher <semteacher@gmail.com>
beta-version. Problems:
1. lib.php/detail_emails not completely working
2. db/access.php - updateown maybe neeb back to the "student" only value. Raise - with admin user in checklist (report mode) now added all teachers.
3. iconv.

Signed-off-by: semteacher <semteacher@gmail.com>
RC1: email can be sent
Issue: Notice: iconv() [function.iconv]: Detected an illegal character in input string in \www\lib\textlib.class.php on line 185
which is recalled from: function encode_mimeheader($text, $charset='utf-8') line 366

Signed-off-by: semteacher <semteacher@gmail.com>
Merge branch '01-1-email_each_checkmark' into 01-checkmark_detail_info
small bugfix in backup_checklist_stepslib.php

Signed-off-by: semteacher <semteacher@gmail.com>
Merge branch '01-checkmark_detail_info' into 02-support_osce_marks

Conflicts:
	backup/moodle2/backup_checklist_stepslib.php
	db/install.xml
	db/upgrade.php
	version.php
-resolved

Signed-off-by: semteacher <semteacher@gmail.com>