Version 5.0 RC

Updated documentation. New delegate method for file download notifications. New property to enable / disable search bar. Fixed bug where search bar would always display at the top of the table. Fixed bugs with subdirectory drill down. New “No Search Results” text if no results found for a search. Fixed bug with download progress view. Fixed viewWillAppear: bug. Fixed bugs when refreshing the table. Added progress view animations. Changed alert view texts to make the existence of a file system less transparent (in accordance with Apple’s guidelines).