[Feature] Option to set default behavior library history

[HenriWahl]

It would be great if there would exist an option to set default behavior for the history setting of libraries similar to setting a default quota. Especially an option to prohibit infinite history would be very appreciated.

[killing]

There is already an config option for this.

Add the following lines to seafile.conf:
[history]
keep_days = default days of history

[HenriWahl]

Thank you! Works as expected. Maybe a good idea to add to https://github.com/haiwen/seafile/wiki/Seafile-server-configuration-options?