Add .gitignore from https://github.com/github/gitignore/blob/master/Objective-C.gitignore
Remove .DS_Store from source control.
Add ContentProvider class (unmodified.)
Move static @"Hello" content out to separate ContentProvider class.
Add time as an example of static content.
Merge pull request #1 from pjenkins-cc/master

Add .gitignore, remove .DS_Store, move static content into separate file