VLCMoviewController: use addConstraints instead of activateConstraints for iOS7

(cherry picked from commit c934384f)

Sources/VLCMovieViewControlPanelView.m

@@ -142,7 +142,7 @@ static const CGFloat maxCompactWidth = 420.0;
                                                                                        metrics:nil
                                                                                          views:viewsDict]];
     }
-    [NSLayoutConstraint activateConstraints:staticConstraints];
+    [self addConstraints:staticConstraints];
 }
 
 - (void)updateViewConstraints

Sources/VLCMovieViewController.m

@@ -369,14 +369,14 @@ typedef NS_ENUM(NSInteger, VLCPanType) {
     [self.navigationController.navigationBar addSubview:self.timeNavigationTitleView];
     [self.navigationController.navigationBar addSubview:doneButton];
 
-    [NSLayoutConstraint activateConstraints: @[
-                                               [NSLayoutConstraint constraintWithItem:doneButton attribute:NSLayoutAttributeLeft relatedBy:NSLayoutRelationEqual toItem:self.navigationController.navigationBar attribute:NSLayoutAttributeLeft multiplier:1 constant:8],
-                                               [NSLayoutConstraint constraintWithItem:doneButton attribute:NSLayoutAttributeCenterY relatedBy:NSLayoutRelationEqual toItem:self.navigationController.navigationBar attribute:NSLayoutAttributeCenterY multiplier:1 constant:0],
-                                               [NSLayoutConstraint constraintWithItem:self.timeNavigationTitleView attribute:NSLayoutAttributeLeft relatedBy:NSLayoutRelationEqual toItem:doneButton attribute:NSLayoutAttributeRight multiplier:1 constant:0],
-                                               [NSLayoutConstraint constraintWithItem:self.timeNavigationTitleView attribute:NSLayoutAttributeRight relatedBy:NSLayoutRelationEqual toItem:self.navigationController.navigationBar attribute:NSLayoutAttributeRight multiplier:1 constant:0],
-                                               [NSLayoutConstraint constraintWithItem:self.timeNavigationTitleView attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqual toItem:self.navigationController.navigationBar attribute:NSLayoutAttributeTop multiplier:1 constant:0],
-                                               [NSLayoutConstraint constraintWithItem:self.timeNavigationTitleView attribute:NSLayoutAttributeBottom relatedBy:NSLayoutRelationEqual toItem:self.navigationController.navigationBar attribute:NSLayoutAttributeBottom multiplier:1 constant:0],
-                                               ]];
+    [self.navigationController.view addConstraints: @[
+                                                      [NSLayoutConstraint constraintWithItem:doneButton attribute:NSLayoutAttributeLeft relatedBy:NSLayoutRelationEqual toItem:self.navigationController.navigationBar attribute:NSLayoutAttributeLeft multiplier:1 constant:8],
+                                                      [NSLayoutConstraint constraintWithItem:doneButton attribute:NSLayoutAttributeCenterY relatedBy:NSLayoutRelationEqual toItem:self.navigationController.navigationBar attribute:NSLayoutAttributeCenterY multiplier:1 constant:0],
+                                                      [NSLayoutConstraint constraintWithItem:self.timeNavigationTitleView attribute:NSLayoutAttributeLeft relatedBy:NSLayoutRelationEqual toItem:doneButton attribute:NSLayoutAttributeRight multiplier:1 constant:0],
+                                                      [NSLayoutConstraint constraintWithItem:self.timeNavigationTitleView attribute:NSLayoutAttributeRight relatedBy:NSLayoutRelationEqual toItem:self.navigationController.navigationBar attribute:NSLayoutAttributeRight multiplier:1 constant:0],
+                                                      [NSLayoutConstraint constraintWithItem:self.timeNavigationTitleView attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqual toItem:self.navigationController.navigationBar attribute:NSLayoutAttributeTop multiplier:1 constant:0],
+                                                      [NSLayoutConstraint constraintWithItem:self.timeNavigationTitleView attribute:NSLayoutAttributeBottom relatedBy:NSLayoutRelationEqual toItem:self.navigationController.navigationBar attribute:NSLayoutAttributeBottom multiplier:1 constant:0],
+                                                      ]];
 }
 
 - (void)viewWillAppear:(BOOL)animated