update lib to 1.0.21

build.gradle

@@ -178,7 +178,7 @@ dependencies {
     compile name: 'touch-image-view'
     compile 'com.android.support:multidex:1.0.1'
 
-    compile 'com.github.nextcloud:android-library:1.0.20'
+    compile 'com.github.nextcloud:android-library:1.0.21'
     compile "com.android.support:support-v4:${supportLibraryVersion}"
     compile "com.android.support:design:${supportLibraryVersion}"
     compile 'com.jakewharton:disklrucache:2.0.2'
@@ -238,4 +238,4 @@ tasks.withType(Test) {
 }
 
 // uncomment for gplay, modified (must be at the bottom)
-//apply plugin: 'com.google.gms.google-services'
+//apply plugin: 'com.google.gms.google-services'