Add activity chooser help
bump version
use correct requires version
Security fix to stop students being able to see the attendance records of other students.
Security fix changed to use mod/attendance:viewreports capability.

Refactored the code.
changed to use require
Merge pull request #8 from NeillM/view-security-fix

Security fix for unprivileged access to attendance records
version bump for security release
bringing in upstream updates