Task: Participants display is wrong after adding custom fields
-* bug #08366 are not the same: is for attribute created with LimeSurvey.
-* Look if patch is needed : seems not : have a difficulty to reproduce this issue. Seems is mots a jqgrid.refresh needed.
-* Use only LimeSurvey attribute of table in LimeSurvey
-* Patched the models : think it's OK for whole