Sms integration fix (#130)

* Twilio integration error handling improvement

* Mock-sms error triggering added

dev/send-message.js

@@ -1,29 +1,30 @@
 require('es6-promise').polyfill()
 
-var config = require('../lib/config')
-var plugins = require('../lib/plugins')
+var config = require('../lib/settings-loader')
+var sms = require('../lib/sms')
 
 var rand = Math.floor(Math.random() * 1e6)
-
+var db = config.connection
 var rec = {
   email: {
     subject: 'Test email ' + rand,
     body: 'This is a test email from lamassu-server'
   },
   sms: {
+    toNumber: '666',
     body: '[Lamassu] This is a test sms ' + rand
   }
 }
 
-var db = config.connection
-config.loadConfig(db)
+config.loadLatest(db)
   .then(function (config) {
-    plugins.configure(config)
-    plugins.sendMessage(rec)
+    sms.sendMessage(config, rec)
       .then(function () {
         console.log('Success.')
+        process.exit(0)
       })
       .catch(function (err) {
         console.log(err.stack)
+        process.exit(1)
       })
   })