Implement HTTPS API with self-signed cert

Switches API to serve all requests over HTTPS, using a self-signed SSL
certificate.

lib/api.js

@@ -8,8 +8,10 @@
 
 "use strict";
 
-var express = require('express.io');
+var fs = require('fs');
-var namespace = require('node-namespace');
+
+var express = require('express.io'),
+    namespace = require('node-namespace');
 
 namespace("Cylon", function() {
   // The Cylon API Server provides an interface to communicate with master class
@@ -29,7 +31,12 @@ namespace("Cylon", function() {
 
       master = opts.master;
 
-      this.server = express().http().io();
+      var options = {
+        cert: fs.readFileSync(__dirname + "/ssl/server.crt"),
+        key: fs.readFileSync(__dirname + "/ssl/server.key")
+      }
+
+      this.server = express().https(options).io();
 
       this.server.set('title', 'Cylon API Server');
 

lib/ssl/server.crt

@@ -0,0 +1,22 @@
+-----BEGIN CERTIFICATE-----
+MIIDnDCCAoQCCQDMuSNl5mThYDANBgkqhkiG9w0BAQUFADCBjzELMAkGA1UEBhMC
+VVMxEzARBgNVBAgTCkNhbGlmb3JuaWExFDASBgNVBAcTC0xvcyBBbmdlbGVzMRkw
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+hxMSOB6xNhHjBiOQRwtGtw==
+-----END CERTIFICATE-----

lib/ssl/server.csr

@@ -0,0 +1,18 @@
+-----BEGIN CERTIFICATE REQUEST-----
+MIIC9jCCAd4CAQAwgY8xCzAJBgNVBAYTAlVTMRMwEQYDVQQIEwpDYWxpZm9ybmlh
+MRQwEgYDVQQHEwtMb3MgQW5nZWxlczEZMBcGA1UEChMQVGhlIEh5YnJpZCBHcm91
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+-----END CERTIFICATE REQUEST-----

lib/ssl/server.key

@@ -0,0 +1,27 @@
+-----BEGIN RSA PRIVATE KEY-----
+MIIEpAIBAAKCAQEAuGhvMNpaUsHA9QUFlHFC3l+y/EXOQYnxPEPxSGnivk/gh2pr
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+-----END RSA PRIVATE KEY-----