Removed the "suggestedFilenames" parameter.

Instead, for the files-parameter, pass an array of either NSString file paths or NSDictionaries containing values for kFileXchangeFilePath, kFileXchangeSuggestedFilename, and/or kFileXchangeUserInfo.
Removed the "suggestedFilenames" parameter.

Instead, for the files-parameter, pass an array of either NSString file paths or NSDictionaries containing values for kFileXchangeFilePath, kFileXchangeSuggestedFilename, and/or kFileXchangeUserInfo.