This version fix an issue with the annotations metadata cache for
autowiring

Prepare the LaTeX to produce MathML by fmath converter, better
extraction of oMath to inline the equation in Word, fix a rare case of
single choice not being outputed

Remove the default passed value (false) if the cut value is not choosed
as mode to calculate passed / failed. Finer default correction mode in
course element after chossing a test (grader if grading enabled, manual
if test has manual by coach defined...)