add api_get_utc_datetime in log
show message, in main page (admin INOUT)
show message, in main page (admin INOUT) - ref BT#8566
validation with message in process substitutions
Merge branch '8566' of github.com:AngelFQC/chamilo-lms-icpna into 8566
records to branch_transaction in process substitution coach - ref BT#8566
Merge branch '8566' of github.com:enlacee/chamilo-lms-icpna into 8566
Merge branch '8566' of github.com:AngelFQC/chamilo-lms-icpna into 8566
Fix sql statement for getring sessions list - refs BT#8566