account for undfined lastCrons

src/app/index.coffee

@@ -97,7 +97,10 @@ resetDom = (model) ->
 
 ready (model) ->
   user = model.at('_user')
-  user.set('lastCron', +new Date) if user.get('lastCron')=='new' #set cron immediately
+
+  #set cron immediately
+  lastCron = user.get('lastCron')
+  user.set('lastCron', +new Date) if (!lastCron or lastCron == 'new')
 
   # Setup model in scoring functions
   scoring.setModel(model)

src/app/schema.coffee

@@ -5,7 +5,7 @@ _ = require 'underscore'
 module.exports.userSchema = ->
   # deep clone, else further new users get duplicate objects
   newUser = require('lodash').cloneDeep
-    lastCron: 'new' #this will be replaced with a date on first run
+    lastCron: 'new' #this will be replaced with `+new Date` on first run
     balance: 2
     stats: { money: 0, exp: 0, lvl: 1, hp: 50 }
     items: { itemsEnabled: false, armor: 0, weapon: 0 }