Improvements #1

- Removed all "issues" in project.    
- improved Locations view UI
- modified UINavigationBar color
- refactored code throughout the app
- broke out any large methods into smaller, cleaner and more maintainable methods
- created a utilities class to help set label fonts with a default font name (in case that default font ever changed, only need to change it in one place)
- modified the "Business Detail" view to use the default font for consistency
- refactored logic to configure any custom table view cells to be put into its respective .m file