hopefully fix weird drawing issues when resizing, and eliminate a memory leak

NEWS

@@ -3,6 +3,7 @@ NEWS file for Transmission <http://www.transmissionbt.com/>
 1.10 (2008/xx/yy)
 - Mac:
    + Window when adding torrents to select files and other settings
+   + Leopard: Group dividers
    + Use the file icon as the per-torrent action button
 
 1.02 (2008/01/22)

macosx/TorrentTableView.h

@@ -36,6 +36,8 @@
     NSArray * fTorrents;
     NSIndexSet * fGroupIndexes;
     
+    TorrentCell * fTorrentCell;
+    
     NSUserDefaults * fDefaults;
     
     IBOutlet NSMenu * fContextRow, * fContextNoRow;

macosx/TorrentTableView.m

@@ -58,6 +58,8 @@
     {
         fDefaults = [NSUserDefaults standardUserDefaults];
         
+        fTorrentCell = [[TorrentCell alloc] init];
+        
         fMouseControlRow = -1;
         fMouseRevealRow = -1;
         fMouseActionRow = -1;
@@ -73,8 +75,10 @@
 
 - (void) awakeFromNib
 {
+    [self setGridStyleMask: NSTableViewSolidVerticalGridLineMask]; //weird redrawing issues if set to none
+    
     if (![NSApp isOnLeopardOrBetter])
-        [[self tableColumnWithIdentifier: @"Torrent"] setDataCell: [[[TorrentCell alloc] init] autorelease]];
+        [[self tableColumnWithIdentifier: @"Torrent"] setDataCell: fTorrentCell];
 }
 
 - (void) dealloc
@@ -86,6 +90,8 @@
     [fKeyStrokes release];
     [fMenuTorrent release];
     
+    [fTorrentCell release];
+    
     [super dealloc];
 }
 
@@ -99,9 +105,10 @@
     fGroupIndexes = indexes;
 }
 
+#warning needed?
 - (id) dataCellForRow: (NSInteger) row
 {
-    return (row == -1 || ![fGroupIndexes containsIndex: row]) ? [[[TorrentCell alloc] init] autorelease] : nil;
+    return (row == -1 || ![fGroupIndexes containsIndex: row]) ? fTorrentCell : nil;
 }
 
 - (BOOL) tableView: (NSTableView *) tableView isGroupRow: (NSInteger) row