1. Added proper breadcrumb to group/edit|create page (preserves previ…

…ous grouping/group selections)

2. Changed "Create Orphan group" to "Create orphan group"
3. Added help string for groupenrolmentkey
4. Edited moodle docs for groups edit page

group/edit.php

@@ -110,7 +110,8 @@
                  $course->fullname, 
                  "<a href=\"$CFG->wwwroot/course/view.php?id=$courseid\">$course->shortname</a> ".
                  "-> <a href=\"$CFG->wwwroot/user/index.php?id=$courseid\">$strparticipants</a> ".
-                 "-> $strgroups", '', '', true, '', user_login_string($course, $USER));
+                 '-> <a href="' .format_string(groups_home_url($courseid, $id, $groupingid, false)) . "\">$strgroups</a>".
+                 "-> $strheading", '', '', true, '', user_login_string($course, $USER));
 
     print_heading($strheading);
     echo '<div id="grouppicture">';

lang/en_utf8/group.php

@@ -67,7 +67,7 @@
 $string['numberofgroups'] = 'Number of groups';
 $string['creategrouping'] = 'Create grouping';
 $string['creategroup'] = 'Create group';
-$string['createorphangroup'] = 'Create Orphan group';
+$string['createorphangroup'] = 'Create orphan group';
 
 $string['groupname'] = 'Group name';
 $string['defaultgroupname'] = 'Group';

lang/en_utf8/help/groupenrolmentkey.html

@@ -0,0 +1,4 @@
+<h1>Group Enrolment Key</h1>
+
+<p>Enrolment keys allow users to enrol themselves into a course, usually there is one key for the whole course defined in the course settings.  However, if you define a *group* enrolment key then not only will entering that key let the user into the course, but it will also automatically make them a member of this group.</p>
+