views.sendRate: format axes better
views: rename stats => dashboard
routes: move dashboard to site root
views.dashboard: update header text
views: remove unused index view
routes.stats: only using the 'key' in each pair
emailer: rename stats to statsStore
testApp: add mass mail sender
mailBuilder: split parsing and building to allow better logging
stats: lastfive: update display text to 'sender=>recipient'
statsStore: order last sent correctly