Various minor changes

Author: crazytonyli

WordPress/Classes/Services/BlogService.m

@@ -9,7 +9,6 @@
 #import "CommentService.h"
 #import "PostService.h"
 #import "TodayExtensionService.h"
-#import "CoreDataStack.h"
 #import "WordPress-Swift.h"
 #import "PostType.h"
 @import WordPressKit;

WordPress/Classes/Utility/ContextManager.swift

@@ -1,7 +1,7 @@
 import Foundation
 import CoreData
 
-///A constant representing the current version of the data model.
+/// A constant representing the current version of the data model.
 ///
 /// - SeeAlso: ContextManager.init(modelName:store:)
 let ContextManagerModelNameCurrent = "$CURRENT"
@@ -110,7 +110,7 @@ private extension ContextManager {
             }
         }
 
-        /// Ensure that the `context`'s concurrency type is not `confinementConcurrencyType`, since it will crash if `perform` or `performAndWait` is called.
+        // Ensure that the `context`'s concurrency type is not `confinementConcurrencyType`, since it will crash if `perform` or `performAndWait` is called.
         guard context.concurrencyType == .mainQueueConcurrencyType || context.concurrencyType == .privateQueueConcurrencyType else {
             block()
             return

WordPress/WordPressTest/CoreDataTestCase.swift

@@ -1,5 +1,4 @@
 import XCTest
-
 import WordPress
 
 /// A `XCTestCase` subclass which manages a mock implementation of `CoreDataStack`. Inherit