added sensors pages and other minor changes

routes/sensors.js

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+var express = require('express');
+var router = express.Router();
+var mongoose = require('mongoose');
+
+require("../models/temperature");
+var temperature = mongoose.model('temperature');
+
+
+/* GET sensors page. */
+router.get('/', function(req, res, next) {
+
+	temperature.aggregate( [ {$sort : {location : -1, updated : -1}}, { $group : { _id : "$location", temperature : {$first : "$temperature"}, humidity : {$first : "$humidity"}, updated : {$first : "$updated"}} } ] ).exec(function(err, info){
+		var date1 = new Date();
+
+		for (var i = 0; i < info.length; i++){
+				console.log(info[i].updated.getTime());
+				console.log(Date.now());
+
+				//compared current time to last db entry - 1200000 milliseconds is 2 minutes
+				if(info[i].updated.getTime() > (Date.now() - 120000)){
+					info[i].connected = true;
+				}
+				else {
+					info[i].connected = false;
+				}
+
+				console.log(info[i].connected);
+				
+		}
+
+		res.render('sensors', {query : info});
+	});
+
+});
+
+router.post('/', function(req, res,next) {
+
+});
+
+module.exports = router;
+
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