[all] Updated according to the final drafts

Chapter3/RssReader/app/src/main/java/co/starcarr/rssreader/MainActivity.kt

@@ -39,12 +39,18 @@ class MainActivity : AppCompatActivity() {
             it.join()
         }
 
+        // If the code below crashes, please change the filter
+        // to !it.isCompletedExceptionally until this issue is
+        // closed: https://github.com/Kotlin/kotlinx.coroutines/issues/220
         val headlines = requests
-                .filter { !it.isCompletedExceptionally }
+                .filter { !it.isCancelled }
                 .flatMap { it.getCompleted() }
 
+        // If the counter doesn't work, please change the filter
+        // to it.isCompletedExceptionally until this issues is
+        // closed: https://github.com/Kotlin/kotlinx.coroutines/issues/220
         val failed = requests
-                .filter { it.isCompletedExceptionally }
+                .filter { it.isCancelled }
                 .size
 
         val newsCount = findViewById<TextView>(R.id.newsCount)

Chapter4/RssReader/app/src/main/java/co/starcarr/rssreader/MainActivity.kt

@@ -56,12 +56,18 @@ class MainActivity : AppCompatActivity() {
             it.join()
         }
 
+        // If the code below crashes, please change the filter
+        // to !it.isCompletedExceptionally until this issue is
+        // closed: https://github.com/Kotlin/kotlinx.coroutines/issues/220
         val articles = requests
-                .filter { !it.isCompletedExceptionally }
+                .filter { !it.isCancelled }
                 .flatMap { it.getCompleted() }
 
+        // If the counter doesn't work, please change the filter
+        // to it.isCompletedExceptionally until this issues is
+        // closed: https://github.com/Kotlin/kotlinx.coroutines/issues/220
         val failed = requests
-                .filter { it.isCompletedExceptionally }
+                .filter { it.isCancelled }
                 .size
 
         val obtained = requests.size - failed

Chapter4/RssReader/app/src/main/java/co/starcarr/rssreader/adapter/ArticleAdapter.kt

@@ -8,7 +8,7 @@ import android.widget.TextView
 import co.starcarr.rssreader.R
 import co.starcarr.rssreader.model.Article
 
-class ArticleAdapter(val name:String) : RecyclerView.Adapter<ArticleAdapter.ViewHolder>() {
+class ArticleAdapter : RecyclerView.Adapter<ArticleAdapter.ViewHolder>() {
 
     private val articles: MutableList<Article> = mutableListOf()