Basic gzip compression with express. (#15)

* Add option to README for gzip compression. Pass along option to worker and express server.
* Added 'compression' requirement to package.json.

Author: meteormanaged

README.md

@@ -35,7 +35,8 @@ Put the following in a `server.js` file:
 const FastBootAppServer = require('fastboot-app-server');
 
 let server = new FastBootAppServer({
-  distPath: 'dist'
+  distPath: 'dist',
+  gzip: true // Optional - Enables gzip compression.
 });
 
 server.start();

package.json

@@ -26,6 +26,7 @@
     "aws-sdk": "^2.3.4",
     "basic-auth": "^1.0.3",
     "chalk": "^1.1.3",
+    "compression": "^1.6.2",
     "express": "^4.13.3",
     "fastboot": "^1.0.0-rc.0",
     "fastboot-express-middleware": "^1.0.0-rc.3",

src/express-http-server.js

@@ -12,8 +12,12 @@ class ExpressHTTPServer {
     this.username = options.username;
     this.password = options.password;
     this.cache = options.cache;
+    this.gzip = options.gzip || false;
 
     this.app = express();
+    if (options.gzip) {
+      this.app.use(require('compression')());
+    }
   }
 
   serve(middleware) {

src/fastboot-app-server.js

@@ -15,7 +15,8 @@ class FastBootAppServer {
     this.notifier = options.notifier;
     this.cache = options.cache;
     this.ui = options.ui;
-
+    this.gzip = options.gzip || false;
+    
     if (!this.ui) {
       let UI = require('./ui');
       this.ui = new UI();
@@ -27,7 +28,8 @@ class FastBootAppServer {
       this.worker = new Worker({
         ui: this.ui,
         distPath: this.distPath || process.env.FASTBOOT_DIST_PATH,
-        cache: this.cache
+        cache: this.cache,
+        gzip: this.gzip
       });
 
       this.worker.start();

src/worker.js

@@ -10,7 +10,8 @@ class Worker {
     this.httpServer = options.httpServer;
     this.ui = options.ui;
     this.cache = options.cache;
-
+    this.gzip = options.gzip || false;
+    
     if (!this.httpServer) {
       this.httpServer = new ExpressHTTPServer({
         ui: this.ui,