update some packages and remove node_modules from repo

app/node_modules/traverse/test/date.js

@@ -1,35 +0,0 @@
-var assert = require('assert');
-var Traverse = require('traverse');
-
-exports.dateEach = function () {
-    var obj = { x : new Date, y : 10, z : 5 };
-    
-    var counts = {};
-    
-    Traverse(obj).forEach(function (node) {
-        var t = (node instanceof Date && 'Date') || typeof node;
-        counts[t] = (counts[t] || 0) + 1;
-    });
-    
-    assert.deepEqual(counts, {
-        object : 1,
-        Date : 1,
-        number : 2,
-    });
-};
-
-exports.dateMap = function () {
-    var obj = { x : new Date, y : 10, z : 5 };
-    
-    var res = Traverse(obj).map(function (node) {
-        if (typeof node === 'number') this.update(node + 100);
-    });
-    
-    assert.ok(obj.x !== res.x);
-    assert.deepEqual(res, {
-        x : obj.x,
-        y : 110,
-        z : 105,
-    });
-};
-