2015-02-08: [r8541] update docuoef4.pdf and documentation class
2015-02-08: fix address in public_htlml/bin/crossword, ...
2015-02-08: score bar in the presentation of sheets
2015-02-07: fix gap problems ; fix the flascard anstype (javascript error).
2015-02-07: Improve qcm model (OB)
2015-02-07: improvment in example in coordclick : add feedback (Julien Lyotard)
2015-01-30: modify apache-config for Ubuntu Trust
2015-01-25: fix a bug in the desactivation of exam.
2015-01-25: [r8499] Added variable 'force_mathml' to module environment.
Use 'force_mathml=yes' to activate in a module (JE)