adding Admin server

admin/server/models/system_stat.js

@@ -0,0 +1,12 @@
+var mongoose = require('mongoose');
+
+var systemStatSchema = mongoose.Schema({
+  callTotals: [Number],
+  errorTotals: [Number],
+  usageBytes: Number,
+  usageMb: Number,
+  shortName: String
+}, { collection: 'system_stats' });
+
+
+module.exports = mongoose.model('SystemStat', systemStatSchema);