macosx: Make streaming wizard output string editable

Change the string's text field from static to editable, so options not in the
wizard can be added. Uses the string from this field directly, rather than the
stored string.
Signed-off-by: Felix Paul Kühne <fkuehne@videolan.org>

modules/gui/macosx/wizard.m

 /*****************************************************************************
  * wizard.m: MacOS X Streaming Wizard
  *****************************************************************************
- * Copyright (C) 2005-2009 VLC authors and VideoLAN
+ * Copyright (C) 2005-2012 VLC authors and VideoLAN
  * $Id$
  *
- * Authors: Felix Kühne <fkuehne at videolan dot org>
+ * Authors: Felix Kühne <fkuehne at videolan dot org>,
+ *          Brendon Justin <brendonjustin at gmail.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -1252,9 +1253,10 @@ static VLCWizard *_o_sharedInstance = nil;
                 [[[o_userSelections objectForKey:@"pathToStrm"]
                 objectAtIndex:x] UTF8String],
                 [tempString UTF8String] );
-            input_item_AddOption( p_input, [[[o_userSelections
-                objectForKey:@"opts"] objectAtIndex: x] UTF8String],
-                VLC_INPUT_OPTION_TRUSTED );
+
+            /* use the MRL from the text field, in case the user
+             * modified it */
+            input_item_AddOption( p_input, [[o_t8_fld_mrl stringValue] UTF8String], VLC_INPUT_OPTION_TRUSTED );
 
             if(! [[o_userSelections objectForKey:@"partExtractFrom"]
                 isEqualToString:@""] )
@@ -1262,7 +1264,7 @@ static VLCWizard *_o_sharedInstance = nil;
                 input_item_AddOption( p_input, [[NSString
                     stringWithFormat: @"start-time=%@", [o_userSelections
                     objectForKey: @"partExtractFrom"]] UTF8String],
-					VLC_INPUT_OPTION_TRUSTED );
+                    VLC_INPUT_OPTION_TRUSTED );
             }
 
             if(! [[o_userSelections objectForKey:@"partExtractTo"]