Prepare 1.6.8 release

Author: mar-v-in

unifiednlp-app/build.gradle

@@ -20,8 +20,8 @@ apply plugin: 'com.android.application'
 applicationId "org.microg.nlp"
 applicationId "com.google.android.gms"
 applicationId "com.google.android.location"
-versionName "1.6.7"
-versionCode "20170"
+versionName "1.6.8"
+versionCode "20187"
  */
 
 String getMyVersionName() {