Fix general reports, teacher summary report and optimize a query in sessionmanager.lib.php -refs BT#8232
Hide the pdf export button - refs BT#8228
Merge branch '8228' of github.com:DeEvo/chamilo-lms-utp into 8228
define variable - refs BT#8228
Merge branch '8228' of https://github.com/DeEvo/chamilo-lms-utp into DeEvo-8228
Fix equality/identity comparison for strcmp()
Merge branch 'DeEvo-8228' into 1.9.x