Update old-node test to use Node 4.

Author: iansu

.travis.yml

@@ -29,7 +29,7 @@ env:
     - TEST_SUITE=monorepos
 matrix:
   include:
-    - node_js: 0.10
+    - node_js: 4
       env: TEST_SUITE=old-node
     - node_js: 6
       env: TEST_SUITE=kitchensink

packages/create-react-app/index.js

@@ -42,7 +42,7 @@ var currentNodeVersion = process.versions.node;
 var semver = currentNodeVersion.split('.');
 var major = semver[0];
 
-if (major < 4) {
+if (major < 8) {
   console.error(
     chalk.red(
       'You are running Node ' +