update lastRead to last_read and make query more moodle-y
Merge with master
Add auto scroll to bottom of chat history page
Add queue name to history messages
Add date limitation to chat history
Adding Chat Histories for everyone
updated readme with chat history
Add untested html email link to chat histories
Fix permissions in history.php to allow admins and update html email formatting to include a link to the chat history page
Fix error message in chathistorylist and fix admin viewing ability
Make testing script use testing code again...
Merge branch 'chathistory'