Remove icon, add scroll view to crash report dialog.

Scroll view helps with smaller screens. Alert dialog icons are not
part of the material design spec so that was removed.

F-Droid/res/layout/crash_report_dialog.xml

@@ -1,9 +1,14 @@
 <?xml version="1.0" encoding="utf-8"?>
-<LinearLayout
+<ScrollView
     xmlns:android="http://schemas.android.com/apk/res/android"
-    android:orientation="vertical"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
+    >
+
+    <LinearLayout
+        android:orientation="vertical"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
         android:paddingLeft="24dp"
         android:paddingRight="24dp"
         android:paddingBottom="24dp"
@@ -33,4 +38,6 @@
             android:layout_marginTop="20dp"
             />
 
-</LinearLayout>
+    </LinearLayout>
+
+</ScrollView>

F-Droid/src/org/fdroid/fdroid/CrashReportActivity.java

@@ -15,7 +15,6 @@ public class CrashReportActivity extends BaseCrashReportDialog implements Dialog
 
         final AlertDialog dialog = new AlertDialog.Builder(this)
                 .setTitle(R.string.crash_dialog_title)
-                .setIcon(android.R.drawable.ic_dialog_alert)
                 .setView(R.layout.crash_report_dialog)
                 .setPositiveButton(R.string.ok, this)
                 .setNegativeButton(R.string.cancel, this)