Make the AboutViewController less complex

By nesting a uiview inside the scroll view and then using auto layout to determine the view's size and then apply it to the UIScrollView's contentSize.
Whoops. This shouldn't be blue.
Fix scrollview content size for iPhone 4 screen sizes.
Merge branch 'master' into about-complexity
Merge pull request #24 from MohawkApps/about-complexity

Make the AboutViewController less complex