Rename some classes and layout resources. Feature added: view posts in ViewSubredditDetailActivity.

app/src/main/res/layout/activity_view_subreddit_detail.xml

@@ -4,6 +4,7 @@
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    android:id="@+id/coordinator_layout_view_subreddit_detail_activity"
     android:fitsSystemWindows="true"
     tools:context=".ViewSubredditDetailActivity">
 

app/src/main/res/layout/fragment_post.xml

@@ -3,26 +3,28 @@
     xmlns:app="http://schemas.android.com/apk/res-auto"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    android:id="@+id/coordinator_layout_best_post_fragment"
-    tools:context="ml.docilealligator.infinityforreddit.BestPostFragment">
+    android:id="@+id/coordinator_layout_post_fragment"
+    tools:context="ml.docilealligator.infinityforreddit.PostFragment">
 
     <ProgressBar
-        android:id="@+id/progress_bar_best_post_fragment"
+        android:id="@+id/progress_bar_post_fragment"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
+        android:layout_marginTop="16dp"
+        android:layout_marginBottom="16dp"
         android:layout_gravity="center" />
 
     <android.support.v7.widget.RecyclerView
-        android:id="@+id/recycler_view_best_post_fragment"
+        android:id="@+id/recycler_view_post_fragment"
         android:layout_width="match_parent"
         android:layout_height="match_parent" />
 
-    <android.support.design.widget.FloatingActionButton
-        android:id="@+id/fab_best_post_fragment"
+    <!--<android.support.design.widget.FloatingActionButton
+        android:id="@+id/fab_post_fragment"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         android:layout_gravity="bottom|end"
         android:layout_margin="@dimen/fab_margin"
-        app:srcCompat="@drawable/baseline_add_white_24" />
+        app:srcCompat="@drawable/baseline_add_white_24" />-->
 
 </android.support.design.widget.CoordinatorLayout>

app/src/main/res/layout/item_footer_progress_bar.xml

@@ -10,6 +10,7 @@
         android:id="@+id/progress_bar_footer_progress_bar_item"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
         android:layout_marginBottom="16dp"
         android:layout_gravity="center" />
 
@@ -17,6 +18,7 @@
         android:id="@+id/relative_layout_footer_progress_bar_item"
         android:layout_width="match_parent"
         android:layout_height="wrap_content"
+        android:layout_marginTop="8dp"
         android:layout_marginBottom="16dp"
         android:layout_marginLeft="16dp"
         android:layout_marginStart="16dp"