Adapt "new group" and "update group" views to RTL.

// FREEBIE

Signal/src/ViewControllers/MessageComposeTableViewController.m

@@ -76,6 +76,7 @@ NS_ASSUME_NONNULL_BEGIN
         [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemStop
                                                       target:self
                                                       action:@selector(dismissPressed)];
+    // TODO:
     UIImage *newGroupImage = [UIImage imageNamed:@"btnGroup--white"];
     OWSAssert(newGroupImage);
     UIBarButtonItem *newGroupButton = [[UIBarButtonItem alloc] initWithImage:newGroupImage

Signal/src/ViewControllers/NewGroupViewController.m

@@ -141,7 +141,7 @@ const NSUInteger kNewGroupViewControllerAvatarWidth = 68;
 
     [threadInfoView addSubview:avatarView];
     [avatarView autoVCenterInSuperview];
-    [avatarView autoPinEdgeToSuperviewEdge:ALEdgeLeft];
+    [avatarView autoPinLeadingToSuperView];
     [avatarView autoSetDimension:ALDimensionWidth toSize:kNewGroupViewControllerAvatarWidth];
     [avatarView autoSetDimension:ALDimensionHeight toSize:kNewGroupViewControllerAvatarWidth];
     [self updateAvatarView];
@@ -158,8 +158,8 @@ const NSUInteger kNewGroupViewControllerAvatarWidth = 68;
                  forControlEvents:UIControlEventEditingChanged];
     [threadInfoView addSubview:groupNameTextField];
     [groupNameTextField autoVCenterInSuperview];
-    [groupNameTextField autoPinEdge:ALEdgeLeft toEdge:ALEdgeRight ofView:avatarView withOffset:16.f];
-    [groupNameTextField autoPinEdgeToSuperviewEdge:ALEdgeRight withInset:16.f];
+    [groupNameTextField autoPinTrailingToSuperView];
+    [groupNameTextField autoPinLeadingToTrailingOfView:avatarView margin:16.f];
 
     [avatarView
         addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(avatarTouched:)]];

Signal/src/ViewControllers/UpdateGroupViewController.m

@@ -185,7 +185,7 @@ NS_ASSUME_NONNULL_BEGIN
 
     [threadInfoView addSubview:avatarView];
     [avatarView autoVCenterInSuperview];
-    [avatarView autoPinEdgeToSuperviewEdge:ALEdgeLeft];
+    [avatarView autoPinLeadingToSuperView];
     [avatarView autoSetDimension:ALDimensionWidth toSize:kAvatarSize];
     [avatarView autoSetDimension:ALDimensionHeight toSize:kAvatarSize];
     _groupAvatar = self.thread.groupModel.groupImage;
@@ -205,8 +205,8 @@ NS_ASSUME_NONNULL_BEGIN
                  forControlEvents:UIControlEventEditingChanged];
     [threadInfoView addSubview:groupNameTextField];
     [groupNameTextField autoVCenterInSuperview];
-    [groupNameTextField autoPinEdge:ALEdgeLeft toEdge:ALEdgeRight ofView:avatarView withOffset:16.f];
-    [groupNameTextField autoPinEdgeToSuperviewEdge:ALEdgeRight withInset:16.f];
+    [groupNameTextField autoPinTrailingToSuperView];
+    [groupNameTextField autoPinLeadingToTrailingOfView:avatarView margin:16.f];
 
     [avatarView
         addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(avatarTouched:)]];

Signal/src/views/ContactTableViewCell.m

@@ -194,10 +194,11 @@ const NSUInteger kContactTableViewCellAvatarSize = 40;
         OWSAssert(self.nameLabel.superview == self.contentView);
         const CGFloat kSubtitleVMargin
             = ((self.contentView.height - self.nameLabel.font.lineHeight) * 0.5f - self.subtitle.height) * 0.5f;
-        self.subtitle.frame = CGRectMake(self.nameLabel.left,
-            round((self.contentView.height - self.subtitle.height) - kSubtitleVMargin),
-            self.subtitle.width,
-            self.subtitle.height);
+        self.subtitle.frame
+            = CGRectMake((self.isRTL ? round(self.nameLabel.right - self.subtitle.width) : self.nameLabel.left),
+                round((self.contentView.height - self.subtitle.height) - kSubtitleVMargin),
+                self.subtitle.width,
+                self.subtitle.height);
     }
 }