Merge pull request #3647 from nextcloud/bumpMasterTo19.0

bump version to 19.0.0 Alpha 01

app/build.gradle

@@ -48,8 +48,8 @@ android {
 
         // mayor.minor.hotfix.increment (for increment: 01-50=Alpha / 51-89=RC / 90-99=stable)
         // xx   .xxx  .xx    .xx
-        versionCode 180010010
-        versionName "18.1.0 Alpha 10"
+        versionCode 190000001
+        versionName "19.0.0 Alpha 01"
 
         flavorDimensions "default"
         renderscriptTargetApi 19