Multiple Sites & User I/F

ProjectsIndexViewController:
1/ Runs at start of application
2/ getSiteId method: Does Pop-up Alert for Site Id
3/ clickedButtonAtIndex: NBSettings: getSiteSettings

NBSettings
1/ Add getSiteSettings from HomeURL for site.
2/ Add getBackgroundImage from HomeURL for site.
3/ Add loadSiteSettings from cache file SiteSettings.plist

HomeViewController
1/ Add Site label field
2/ Reformat for better look and feel.

FSProjects
1/ load method: Gets projects from NBSettings projects

FSFields
1/ load method: Gets Field Schemas for projects