Tweak separatorInset on About screen.
Fix unrecognized selector crash in Tours. #38

- NSLocale has a custom objectForKey: method which can’t be replaced with keyed subscripting.
Update Tours root screen for iOS 7. #36

- Use white navbar style.
- Adjust background to not be under the navbar.
- Move Begin Self-Guided Tour and Introduction to MIT up higher.
Clean up unused lines. #36
Update Intro to MIT screen in Tours for iOS 7. #36
Update Tour Intro screen for iOS 7. #36
Remove logging statements from tour intro screen. #36
Fix infinite loop when -[CoreDataManager saveData] fails.
Fix -[CoreDataManger getObjectForEntity:attribute:value:].

- NSPredicate’s format syntax automatically quotes %@ values. %K is needed for keys.
- Fixes duplicate filters in Dining. #36
- Fixes Tours loading issues. #38
Re-indent ToursDataManager to be more readable. #38