Sort entries once on load and then rely on the sorting to find out th…

…e largest and smallest value

lib/client/index.js

@@ -266,7 +266,7 @@ client.load = function load (serverSettings, callback) {
 
   client.dataExtent = function dataExtent () {
     if (client.entries.length > 0) {
-      return d3.extent(client.entries, client.entryToDate);
+      return[client.entryToDate(client.entries[0]), client.entryToDate(client.entries[client.entries.length-1])];
     } else {
      return [new Date(client.now - times.hours(history).msecs), new Date(client.now)];
      }
@@ -1147,6 +1147,10 @@ client.load = function load (serverSettings, callback) {
         point.color = 'transparent';
       }
     });
+
+    client.entries.sort(function sorter(a,b) {
+      return a.mills - b.mills;
+    });
   }
 
   function dataUpdate (received) {

lib/profilefunctions.js

@@ -6,7 +6,7 @@ var c = require('memory-cache');
 var times = require('./times');
 var crypto = require('crypto');
 
-var cacheTTL = 1000;
+var cacheTTL = 5000;
 var prevBasalTreatment = null;
 var cache = new c.Cache();