Fixed potential memory leaks on OS X

And renamed create* methods to new* to follow more closely Objective-C
naming convention regarding memory management.

src/SFML/Window/OSX/SFApplication.m

@@ -58,29 +58,29 @@
     NSMenu* mainMenu = [NSApp mainMenu];
     if (mainMenu != nil)
         return;
-    mainMenu = [[NSMenu alloc] initWithTitle:@""];
+    mainMenu = [[[NSMenu alloc] initWithTitle:@""] autorelease];
     [NSApp setMainMenu:mainMenu];
 
     // Application Menu (aka Apple Menu)
     NSMenuItem* appleItem = [mainMenu addItemWithTitle:@"" action:nil keyEquivalent:@""];
-    NSMenu* appleMenu = [[SFApplication createAppleMenu] autorelease];
+    NSMenu* appleMenu = [[SFApplication newAppleMenu] autorelease];
     [appleItem setSubmenu:appleMenu];
 
     // File Menu
     NSMenuItem* fileItem = [mainMenu addItemWithTitle:@"" action:nil keyEquivalent:@""];
-    NSMenu* fileMenu = [[SFApplication createFileMenu] autorelease];
+    NSMenu* fileMenu = [[SFApplication newFileMenu] autorelease];
     [fileItem setSubmenu:fileMenu];
 
     // Window menu
     NSMenuItem* windowItem = [mainMenu addItemWithTitle:@"" action:nil keyEquivalent:@""];
-    NSMenu* windowMenu = [[SFApplication createWindowMenu] autorelease];
+    NSMenu* windowMenu = [[SFApplication newWindowMenu] autorelease];
     [windowItem setSubmenu:windowMenu];
     [NSApp setWindowsMenu:windowMenu];
 }
 
 
 ////////////////////////////////////////////////////////
-+(NSMenu*)createAppleMenu
++(NSMenu*)newAppleMenu
 {
     // Apple menu is as follow:
     //
@@ -159,7 +159,7 @@
 
 
 ////////////////////////////////////////////////////////
-+(NSMenu*)createFileMenu
++(NSMenu*)newFileMenu
 {
     // The File menu is as follow:
     //
@@ -181,7 +181,7 @@
 
 
 ////////////////////////////////////////////////////////
-+(NSMenu*)createWindowMenu
++(NSMenu*)newWindowMenu
 {
     // The Window menu is as follow:
     //

src/SFML/Window/OSX/SFWindowController.mm

@@ -188,7 +188,7 @@
     [m_window setIgnoresMouseEvents:NO];
 
     // Create a master view containing our OpenGL view
-    NSView* masterView = [[SFBlackView alloc] initWithFrame:windowRect];
+    NSView* masterView = [[[SFBlackView alloc] initWithFrame:windowRect] autorelease];
 
     if (masterView == nil)
     {

src/SFML/Window/OSX/WindowImplCocoa.mm

@@ -216,7 +216,7 @@ void WindowImplCocoa::setUpProcess(void)
 
         // Register an application delegate if there is none
         if (![[SFApplication sharedApplication] delegate])
-            [NSApp setDelegate:[[SFApplicationDelegate alloc] init]];
+            [NSApp setDelegate:[[[SFApplicationDelegate alloc] init] autorelease]];
 
         // Create menus for the application (before finishing launching!)
         [SFApplication setUpMenuBar];