adding participants list for https://github.com/ProjetDeRechercheSurLecriture/DyslexDisorthGame/issues/174
using fielddb Participants to display participants dropdown

for https://github.com/ProjetDeRechercheSurLecriture/DyslexDisorthGame/issues/174
encryption fails: Uncaught ReferenceError: Buffer is not defined

Montage isnt able to load the browserified version of FieldDB but instead can load the js files directly since it also uses NPM, however it doesnt seem to have s Browser equivalent of Buffer which Crypto-js is using.
working on using forge instead: https://github.com/digitalbazaar/forge#cipher