Merge branch 'GPII-1318'

* GPII-1318:
  GPII-1318: Updates Vagrant provisioning scripts to Node 4.4.3.
  GPII-1318: Fixed up broken tests for killProcess, registryResolver. Integrated material from GPII-12 and GPII-776
  GPII-1318: Some fixes following review
  GPII-776 Minor changes from pull request review.
  GPII-1318: Added node_modules to .gitignore
  GPII-1318: Updated to node 4-ready branch of universal. Native build now seems reliable so node_modules can be deleted
  GPII-776 Fluid Function for checking if a registry key exists and unit tests for it.

Author: colinbdclark

.gitignore

@@ -0,0 +1,2 @@
+/node_modules/
+.vagrant

README.md

@@ -23,7 +23,7 @@ To build the GPII for Windows using grunt, perform the following:
 
     git clone https://github.com/GPII/windows.git
     cd windows
-    npm install --ignore-scripts=true
+    npm install
     grunt build
 
 Note that whenever you run the `npm install` task for this project, you must use the option appearing above.