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Fixes EQ-1317 send username as lis_person_sourcedid
Merge pull request #25 from equella/bugfix/EQ-1317

Fixes EQ-1317 send username as lis_person_sourcedid
Fix coding style
Improve find_item_usage to ignore items with invalid courseid
EQ-1373 Fix courseid in mdl_equella table
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Declare $CFG in exception class
EQ-1462 Provide SELECT COUNT(...) in find_all_usages
EQ-1052 Dynamic window size
EQ-1450 find_usage_for_item performance improvements
EQ-1444 Improve list_courses_for_user()
Check if coursemodule exists
coding style fix
EQ-1450 improve find_all_usage
Add EQUELLA views to moodle logs when using LTI

When LTI authentication is enabled, viewing an EQUELLA resource set to open in a new window did not add an entry to the moodle logs. Log entry added just before the redirect (similar to view.php).
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EQ-1574 fix js error when conditional access enabled #28
EQ-1576 Avoid using DISTINCT in SQL
EQ-1576 Fix SQL for Oracle DB