Add gzip compression, can be disabled in config.js

Closes #1305
- added compression module
- added new server config variable: compress
- gzip enabled by default

core/server/index.js

@@ -2,6 +2,7 @@
 var crypto      = require('crypto'),
     express     = require('express'),
     hbs         = require('express-hbs'),
+    compress    = require('compression'),
     fs          = require('fs'),
     uuid        = require('node-uuid'),
     Polyglot    = require('node-polyglot'),
@@ -66,7 +67,7 @@ function initDbHashAndFirstRun() {
                 return dbHash;
             }).then(doFirstRun);
         }
-        
+
         return dbHash;
     });
 }
@@ -218,6 +219,11 @@ function init(server) {
         // return the correct mime type for woff filess
         express['static'].mime.define({'application/font-woff': ['woff']});
 
+        // enabled gzip compression by default
+        if (config().server.compress !== false) {
+            server.use(compress());
+        }
+
         // ## View engine
         // set the view engine
         server.set('view engine', 'hbs');

package.json

@@ -35,6 +35,7 @@
         "bookshelf": "0.6.8",
         "busboy": "0.0.12",
         "colors": "0.6.2",
+        "compression": "^1.0.2",
         "connect-slashes": "1.2.0",
         "downsize": "0.0.5",
         "express": "3.4.6",