Ensure that SSL options (if provided) are buffers

See lodash/lodash#1453

lib/hooks/http/initialize.js

@@ -31,12 +31,22 @@ module.exports = function(sails) {
         var app = sails.hooks.http.app = express();
         app.disable('x-powered-by');
         // (required by Express 3.x)
+
+        // Determine whether or not to create an HTTPS server
         var usingSSL = sails.config.ssl === true || (sails.config.ssl.key && sails.config.ssl.cert) || sails.config.ssl.pfx;
 
         // Merge SSL into server options
         var serverOptions = sails.config.http.serverOptions || {};
         _.extend(serverOptions, sails.config.ssl);
 
+        // Lodash 3's _.merge transforms buffers into arrays; if we detect an array, then
+        // transform it back into a buffer
+        _.each(['key', 'cert', 'pfx'], function(sslOption) {
+          if (_.isArray(serverOptions[sslOption])) {
+            serverOptions[sslOption] = new Buffer(serverOptions[sslOption]);
+          }
+        });
+
         // Get the appropriate server creation method for the protocol
         var createServer = usingSSL ?
             require('https').createServer :
@@ -117,7 +127,7 @@ module.exports = function(sails) {
         // app.use() the configured express middleware
         var defaultMiddleware = require('./middleware/defaults')(sails, app);
         installHTTPMiddleware(app, defaultMiddleware, sails);
-        
+
         // Note that it is possible for the configured HTTP middleware stack to be shared with the
         // core router built into Sails-- this would make the same stack take effect for all virtual requests
         // including sockets.  Currently, an abbreviated version of this stack is built-in to `lib/router/`