Use log4js logger

Closes #138.
The logger will be automatically used by Windshaft on upgrade
to 0.18.1, see https://github.com/CartoDB/Windshaft/issues/140

NEWS.md

@@ -1,6 +1,10 @@
 1.8.1 -- 2014-02-DD
 -------------------
 
+Enhancements:
+
+ * Use log4js logger (#138)
+
 1.8.0 -- 2014-02-18
 -------------------
 

app.js

@@ -24,6 +24,15 @@ global.settings     = require(__dirname + '/config/settings');
 global.environment  = require(__dirname + '/config/environments/' + ENV);
 _.extend(global.settings, global.environment);
 
+global.log4js = require('log4js')
+log4js.configure({
+  appenders: [
+    { type: "console", layout: { type:'basic' } }
+  ],
+  replaceConsole:true
+});
+
+
 // Include cartodb_windshaft only _after_ the "global" variable is set
 // See https://github.com/Vizzuality/Windshaft-cartodb/issues/28
 var CartodbWindshaft = require('./lib/cartodb/cartodb_windshaft');
@@ -52,3 +61,4 @@ process.on('SIGUSR1', function() {
 process.on('SIGUSR2', function() {
   ws.dumpCacheStats();
 });
+

npm-shrinkwrap.json

@@ -1,6 +1,6 @@
 {
   "name": "windshaft-cartodb",
-  "version": "1.8.0",
+  "version": "1.8.1",
   "dependencies": {
     "node-varnish": {
       "version": "0.2.0",
@@ -413,12 +413,28 @@
     "lzma": {
       "version": "1.2.3"
     },
-    "redis": {
-      "version": "0.8.6"
+    "log4js": {
+      "version": "0.6.10",
+      "dependencies": {
+        "async": {
+          "version": "0.1.15"
+        },
+        "readable-stream": {
+          "version": "1.0.25-1",
+          "dependencies": {
+            "string_decoder": {
+              "version": "0.10.25-1"
+            }
+          }
+        }
+      }
     },
     "strftime": {
       "version": "0.6.2"
     },
+    "redis": {
+      "version": "0.8.6"
+    },
     "semver": {
       "version": "1.1.4"
     },

package.json

@@ -30,7 +30,8 @@
         "cartodb-redis": "~0.3.0",
         "redis-mpool": "~0.0.2",
         "mapnik": "~0.7.22",
-        "lzma": "~1.2.3"
+        "lzma": "~1.2.3",
+        "log4js": "~0.6.10"
     },
     "devDependencies": {
         "mocha": "1.14.0",