Updated guide + settings bundle + fixes.

[UPDATED]   Guide updated with UI changes.
[FIXED]     Don't animate pushing the unlock VC when appearance of main
            VC is not animated (eg. application startup).
[FIXED]     rememberKey -> rememberLogin in settings bundle.
[REMOVED]   saveKey from settings bundle.
[UPDATED]   Removed lock from the Default image; show a dummy avatar
            instead.
[FIXED]     Don't forget key when signing out.

MasterPassword/iOS/MPGuideViewController.m

@@ -24,6 +24,13 @@
     [self.scrollView autoSizeContent];
 }
 
+- (void)viewDidAppear:(BOOL)animated {
+    
+    [[UIApplication sharedApplication] setStatusBarHidden:YES withAnimation:animated? UIStatusBarAnimationSlide: UIStatusBarAnimationNone];
+    
+    [super viewDidAppear:animated];
+}
+
 - (void)viewWillDisappear:(BOOL)animated {
 
     [super viewWillDisappear:animated];