Re-organized DirectoryPanel across editions in a saner way.

cocoa/pe/AppDelegate.m

@@ -58,10 +58,10 @@ http://www.hardcoded.net/licenses/hs_license
     [[self directoryPanel] toggleVisible:sender];
 }
 
-- (DirectoryPanelBase *)directoryPanel
+- (DirectoryPanel *)directoryPanel
 {
     if (!_directoryPanel)
-        _directoryPanel = [[DirectoryPanel alloc] initWithParentApp:self];
+        _directoryPanel = [[DirectoryPanelPE alloc] initWithParentApp:self];
     return _directoryPanel;
 }
 - (PyDupeGuru *)py { return (PyDupeGuru *)py; }

cocoa/pe/DirectoryPanel.h

@@ -9,7 +9,7 @@ http://www.hardcoded.net/licenses/hs_license
 #import <Cocoa/Cocoa.h>
 #import "../base/DirectoryPanel.h"
 
-@interface DirectoryPanel : DirectoryPanelBase
+@interface DirectoryPanelPE : DirectoryPanel
 {
 }
 - (IBAction)addiPhoto:(id)sender;

cocoa/pe/DirectoryPanel.m

@@ -11,7 +11,7 @@ http://www.hardcoded.net/licenses/hs_license
 
 static NSString* jobAddIPhoto = @"jobAddIPhoto";
 
-@implementation DirectoryPanel
+@implementation DirectoryPanelPE
 - (id)initWithParentApp:(id)aParentApp
 {
     self = [super initWithParentApp:aParentApp];