Bugfixes and improvements.

App.js

@@ -192,7 +192,6 @@ export default class App extends Component<Props> {
   };
 
   promoteSelectedPawn = piece => {
-    qwerty
     const { promotionParams, playAgainstAI, checkmate } = this.state;
     if (promotionParams) {
       piece = piece ? piece : "knight";

android/app/build.gradle

@@ -105,9 +105,8 @@ android {
         applicationId "com.rsg.chess"
         minSdkVersion 16
         targetSdkVersion 27
-        // next time use versionCode - 20018, because of the seperate APKs:
-        versionCode 20102
-        versionName "2.0.1"
+        versionCode 20200
+        versionName "2.1"
         // ndk {
         //     abiFilters "armeabi-v7a", "x86"
         // }
@@ -169,7 +168,7 @@ dependencies {
     implementation "com.google.firebase:firebase-core:15.0.2"
     implementation "com.google.firebase:firebase-ads:15.0.0"
     implementation "com.google.firebase:firebase-analytics:15.0.2"
-    implementation "com.google.firebase:firebase-perf:15.1.0"
+    implementation "com.google.firebase:firebase-perf:16.0.0"
     implementation('com.crashlytics.sdk.android:crashlytics:2.9.1@aar') {
         transitive = true
     }

android/app/src/main/assets/crashlytics-build.properties

@@ -0,0 +1,11 @@
+#This file is automatically generated by Crashlytics to uniquely
+#identify individual builds of your Android application.
+#
+#Do NOT modify, delete, or commit to source control!
+#
+#Tue Jul 10 18:02:42 EEST 2018
+version_name=0.0
+package_name=com.rsg.chess
+build_id=66fabbd6-de62-4d83-b861-b925161494e8
+version_code=0
+app_name=RSG Chess

android/app/src/main/res/values/com_crashlytics_export_strings.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="utf-8" standalone="no"?>
+<resources xmlns:tools="http://schemas.android.com/tools">
+<!--
+  This file is automatically generated by Crashlytics to uniquely 
+  identify individual builds of your Android application.
+
+  Do NOT modify, delete, or commit to source control!
+-->
+<string tools:ignore="UnusedResources,TypographyDashes" name="com.crashlytics.android.build_id" translatable="false">66fabbd6-de62-4d83-b861-b925161494e8</string>
+</resources>