Fixing depreciated calls

Wish all file handling was in URLs not this mixed bag.
Added a fast enum to convert url output of an open panel to paths.

Session/TSSTSessionWindowController.m

@@ -973,9 +973,10 @@ - (void)extractPageWithSelection:(NSInteger)selection
 		NSSavePanel * savePanel = [NSSavePanel savePanel];
 		[savePanel setTitle: @"Extract Page"];
 		[savePanel setPrompt: @"Extract"];
-		if(NSOKButton == [savePanel runModalForDirectory: nil file: [selectedPage name]])
+        [savePanel setNameFieldStringValue: [selectedPage name]];
+		if(NSOKButton == [savePanel runModal])
 		{
-			[[selectedPage pageData] writeToFile: [savePanel filename] atomically: YES];
+			[[selectedPage pageData] writeToURL: [savePanel URL] atomically: YES];
 		}
 	}
 }

SimpleComicAppDelegate.m

@@ -715,13 +715,27 @@ - (IBAction)addPages:(id)sender
 	NSOpenPanel * addPagesModal = [NSOpenPanel openPanel];
 	[addPagesModal setAllowsMultipleSelection: YES];
     [addPagesModal setCanChooseDirectories: YES];
-
+    NSMutableArray * filePaths;
+    NSArray * fileURLs;
+	NSURL * fileURL;
+    NSString * filePath;
+
 	NSMutableArray * allAllowedFilesExtensions = [NSMutableArray arrayWithArray: [TSSTManagedArchive archiveExtensions]];
 	[allAllowedFilesExtensions addObjectsFromArray: [TSSTPage imageExtensions]];
+    [addPagesModal setAllowedFileTypes:allAllowedFilesExtensions];
+
 
-	if([addPagesModal runModalForTypes: allAllowedFilesExtensions] !=  NSCancelButton)
+	if([addPagesModal runModal] !=  NSCancelButton)
 	{
-		TSSTManagedSession * session = [self newSessionWithFiles: [addPagesModal filenames]];
+        filePaths = [NSMutableArray new];
+        fileURLs = [addPagesModal URLs];
+
+        for (fileURL in fileURLs) {
+            filePath = [fileURL path];
+            [filePaths addObject:filePath];
+        }
+
+		TSSTManagedSession * session = [self newSessionWithFiles: filePaths];
 		[self windowForSession: session];
 	}
 }