bbb-lti: Added format and localisation to date in recording list

...ails-app/assets/javascripts/dataTables.plugin.datetime.js

.../grails-app/assets/javascripts/moment-with-locales.min.js

bbb-lti/grails-app/assets/javascripts/tool.js

...s-app/controllers/org/bigbluebutton/ToolController.groovy

bbb-lti/grails-app/i18n/messages.properties

bbb-lti/grails-app/i18n/messages_es.properties

bbb-lti/grails-app/i18n/messages_fr.properties

bbb-lti/grails-app/views/error.gsp

bbb-lti/grails-app/views/tool/error.gsp

bbb-lti/grails-app/views/tool/index.gsp