Fixed failing travis builds (#2040)

* Added condition npm install to travis

* Updated node_version.sh perms

.travis.yml

@@ -44,7 +44,7 @@ matrix:
 
 before_install:
   - "npm config set strict-ssl false"
- # - "npm install -g npm@4.3.0"
+  - "./misc/node_version.sh"
   - "npm install -g mocha@2.x voc"
   - "npm install blanket"
   - "npm install word"

misc/node_version.sh

@@ -0,0 +1,11 @@
+#! /usr/bin/env bash
+
+# This script will check the current version of node and install another version
+# of npm if node is version 0.8
+
+version=$(node --version)
+
+if [[ $version =~ v0\.8\. ]]
+then
+  npm install -g npm@4.3.0
+fi