Removed exercise 1. Updated steps to customize VM. Updated screenshots.
Updated screenshots. Minor naming updates.
Updated steps in exercises 1 and 3. Updated Overview and Summary.
Removed Setup files and steps. Updated Lab.xml
Removed unused screenshots
Updated exercise 3
Removed extra step in exercise 3. Updated screenshot
Updated Readme
Wording and style fixes
Merge pull request #3 from WindowsAzure-Preview/master

Updated document flow and general fixes