Merge pull request #2 from luquantan/feature/ImageView

Feature/image view
Initial commit of LQApplicationSettings
Added methods to LQTopPlacesPhoto to conform to NSCoding Protocol
LQApplicationSetting has been implemented with a singleton pattern.
Next step: The class of recentPhotos needs to take into account the adding unique elements in chronological order.
Created method to check recentPhotos for duplicate elements and a max amount of 50
Tested validifyRecentPhotos method
Made changes to LQApplicationSettings.
Changed recentPhotos class from NSMutableArray to NSArray.
Fixed null values in LQTopPlacesPhoto model. The property class should be an id.
Fixed PR from Logan:
1. Bug in validifyRecentPhotosToSave:
2. Change retain to strong, keeping in line with ARC
Merge pull request #3 from luquantan/feature/LQApplicationSettings

Feature/lq application settings
Initial commit of new branch feature/LQRecentPhotosTVC
Created LQRecentPhotosTVC and added new TableViewController to main storyboard.
Fixed "data is Null" warning from loadRecentPhotos in LQApplicationSettings.
Changed getter of recentPhotos to always give the latest version from recentPhotos.
Hooked LQRecentPhotosTVC to an ImageViewController.
Made some additions to display recentPhotosTableView properly.