Updated app version to 0.1.5

app/build.gradle

@@ -9,8 +9,8 @@ android {
         applicationId "me.vadik.knigopis"
         minSdkVersion 19
         targetSdkVersion 27
-        versionCode 5
-        versionName "0.1.4"
+        versionCode 6
+        versionName "0.1.5"
         archivesBaseName = "$applicationId-$versionName-$versionCode"
         vectorDrawables.useSupportLibrary = true
     }