[Owncloud] the Updater app

[Pascal d'Hermilly]

I have with joy used the Updater app a few times. in the Owncloud 4 series. It was such a relief to just click update and you had the latest version.

It doesn't seem to work anymore. The App seems not enabled but the message "error while enabling" shows up if trying to enable and the log file in admin says "App already installed".

An updater app makes it so much easier to keep up with the latest release