Pontoon: Update Spanish (es-ES) localization of Test Pilot Website
Pontoon: Update Spanish (es-ES) localization of Test Pilot Website

Localization authors:
- avelper <avelper@mozilla-hispano.org>

meandavejustice/testpilot,lmorchard/idea-town,lmorchard/testpilot,mozilla/idea-town-server,lmorchard/idea-town,meandavejustice/testpilot,meandavejustice/testpilot,fzzzy/testpilot,mozilla/idea-town,mozilla/idea-town-server,mozilla/idea-town-server,lmorchard/testpilot,chuckharmston/testpilot,chuckharmston/testpilot,fzzzy/testpilot,lmorchard/idea-town-server,mozilla/idea-town-server,mozilla/idea-town,lmorchard/idea-town,mozilla/idea-town,flodolo/testpilot,fzzzy/testpilot,fzzzy/testpilot,lmorchard/testpilot,lmorchard/idea-town,lmorchard/idea-town-server,mozilla/idea-town,lmorchard/idea-town-server,chuckharmston/testpilot,lmorchard/idea-town-server,flodolo/testpilot,chuckharmston/testpilot,flodolo/testpilot,flodolo/testpilot,meandavejustice/testpilot,lmorchard/testpilot