Changes required by Guava deprecation of Stopwatch ctor

- Preparation for jclouds 1.8.0 and Guava 17
This closes #${PR}

* github/pr/79:
  Changes required by Guava deprecation of Stopwatch ctor
User Feature
getUser Test Case added
UI changes to show username
Refactored UI code
Review Comments PR#74
Review Comments PR#74
Incorporated review comments PR#74
Incorporated review comments PR#74 indentation
Incorporated review comments PR#74 indent
Incorporated review comments PR#74 indent#1
Indentation review comments