Iniital checkin - Hello World

One view screen - with label that gets updated with text user types in
text box when user clicks on button.
Not sure why the .gitignore was showing up as an uncommitted change.
But committing now anyways.
Merge branch 'master' of https://github.com/ParmeshwarBayappu/PluralsightBeginiOS7Dev

Not sure why another merge is necessary.