Modification in medMessageProgress so that timer is started only when message is displayed
Modification in medMessageProgress so that timer is started only when message is displayed

aabadie/medInria-public,rdebroiz/medInria-public,aabadie/medInria-public,rdebroiz/medInria-public,NicolasSchnitzler/medInria-public,NicolasSchnitzler/medInria-public,NicolasSchnitzler/medInria-public,aabadie/medInria-public,rdebroiz/medInria-public