Various fixes for Android < 5.0

Use the AlertDialog from the support library everywhere.
The toolbar was not the last view in the viewgroup, and since the elevation is ignored on <5.0 it became visible when a collapsing toolbar was used.
The FAB has a wrong margin when the parent CoordinatorLayout has a top margin, to account for non collapsing toolbars. Since this is only an issue on not so important layouts, ignore this issue.

Clover/app/src/main/java/org/floens/chan/ui/activity/StartActivity.java

@@ -17,7 +17,6 @@
  */
 package org.floens.chan.ui.activity;
 
-import android.app.AlertDialog;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.content.res.Configuration;
@@ -27,6 +26,7 @@ import android.nfc.NfcAdapter;
 import android.nfc.NfcEvent;
 import android.os.Bundle;
 import android.support.annotation.NonNull;
+import android.support.v7.app.AlertDialog;
 import android.support.v7.app.AppCompatActivity;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;

Clover/app/src/main/java/org/floens/chan/ui/controller/AdvancedSettingsController.java

@@ -18,8 +18,8 @@
 package org.floens.chan.ui.controller;
 
 import android.app.Activity;
-import android.app.AlertDialog;
 import android.content.Context;
+import android.support.v7.app.AlertDialog;
 import android.view.View;
 import android.widget.LinearLayout;
 

Clover/app/src/main/java/org/floens/chan/ui/controller/BoardEditController.java

@@ -18,11 +18,11 @@
 package org.floens.chan.ui.controller;
 
 import android.annotation.SuppressLint;
-import android.app.AlertDialog;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.support.design.widget.FloatingActionButton;
 import android.support.design.widget.Snackbar;
+import android.support.v7.app.AlertDialog;
 import android.support.v7.widget.RecyclerView;
 import android.text.TextUtils;
 import android.view.LayoutInflater;

Clover/app/src/main/java/org/floens/chan/ui/controller/DrawerController.java

@@ -17,12 +17,12 @@
  */
 package org.floens.chan.ui.controller;
 
-import android.app.AlertDialog;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.content.res.Configuration;
 import android.support.design.widget.Snackbar;
 import android.support.v4.widget.DrawerLayout;
+import android.support.v7.app.AlertDialog;
 import android.support.v7.widget.RecyclerView;
 import android.text.TextUtils;
 import android.view.Gravity;

Clover/app/src/main/java/org/floens/chan/ui/controller/HistoryController.java

@@ -17,9 +17,9 @@
  */
 package org.floens.chan.ui.controller;
 
-import android.app.AlertDialog;
 import android.content.Context;
 import android.content.DialogInterface;
+import android.support.v7.app.AlertDialog;
 import android.support.v7.widget.LinearLayoutManager;
 import android.support.v7.widget.RecyclerView;
 import android.support.v7.widget.SwitchCompat;

Clover/app/src/main/java/org/floens/chan/ui/controller/ImageViewerController.java

@@ -24,7 +24,6 @@ import android.animation.ObjectAnimator;
 import android.animation.ValueAnimator;
 import android.annotation.SuppressLint;
 import android.app.Activity;
-import android.app.AlertDialog;
 import android.content.Context;
 import android.content.DialogInterface;
 import android.graphics.Bitmap;
@@ -32,6 +31,7 @@ import android.graphics.Color;
 import android.graphics.Point;
 import android.graphics.PointF;
 import android.os.Build;
+import android.support.v7.app.AlertDialog;
 import android.util.Log;
 import android.view.LayoutInflater;
 import android.view.View;

Clover/app/src/main/java/org/floens/chan/ui/controller/ViewThreadController.java

@@ -17,9 +17,9 @@
  */
 package org.floens.chan.ui.controller;
 
-import android.app.AlertDialog;
 import android.content.Context;
 import android.content.DialogInterface;
+import android.support.v7.app.AlertDialog;
 
 import org.floens.chan.Chan;
 import org.floens.chan.R;

Clover/app/src/main/java/org/floens/chan/ui/layout/ThreadLayout.java

@@ -19,7 +19,6 @@ package org.floens.chan.ui.layout;
 
 import android.annotation.SuppressLint;
 import android.app.Activity;
-import android.app.AlertDialog;
 import android.app.ProgressDialog;
 import android.content.ClipData;
 import android.content.ClipboardManager;
@@ -28,6 +27,7 @@ import android.content.DialogInterface;
 import android.support.design.widget.CoordinatorLayout;
 import android.support.design.widget.FloatingActionButton;
 import android.support.design.widget.Snackbar;
+import android.support.v7.app.AlertDialog;
 import android.util.AttributeSet;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;

Clover/app/src/main/java/org/floens/chan/ui/settings/IntegerSettingView.java

@@ -17,8 +17,8 @@
  */
 package org.floens.chan.ui.settings;
 
-import android.app.AlertDialog;
 import android.content.DialogInterface;
+import android.support.v7.app.AlertDialog;
 import android.text.InputType;
 import android.view.View;
 import android.view.WindowManager;

Clover/app/src/main/java/org/floens/chan/ui/settings/StringSettingView.java

@@ -17,8 +17,8 @@
  */
 package org.floens.chan.ui.settings;
 
-import android.app.AlertDialog;
 import android.content.DialogInterface;
+import android.support.v7.app.AlertDialog;
 import android.view.View;
 import android.view.WindowManager;
 import android.view.inputmethod.EditorInfo;

Clover/app/src/main/res/layout/controller_navigation_toolbar.xml

@@ -20,14 +20,14 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
     android:layout_height="match_parent"
     android:background="?backcolor">
 
-    <org.floens.chan.ui.toolbar.Toolbar
-        android:id="@+id/toolbar"
-        android:layout_width="match_parent"
-        android:layout_height="@dimen/toolbar_height" />
-
     <FrameLayout
         android:id="@+id/container"
         android:layout_width="match_parent"
         android:layout_height="match_parent" />
 
+    <org.floens.chan.ui.toolbar.Toolbar
+        android:id="@+id/toolbar"
+        android:layout_width="match_parent"
+        android:layout_height="@dimen/toolbar_height" />
+
 </org.floens.chan.ui.view.TouchBlockingFrameLayout>