Updated app version to 0.1.3

app/build.gradle

@@ -9,8 +9,8 @@ android {
         applicationId "me.vadik.knigopis"
         minSdkVersion 19
         targetSdkVersion 27
-        versionCode 3
-        versionName "0.1.2"
+        versionCode 4
+        versionName "0.1.3"
         archivesBaseName = "$applicationId-$versionName-$versionCode"
         vectorDrawables.useSupportLibrary = true
     }