Option page for expiration time (Github fork)

A few users wish to change to expiration time of the links from 48 hours to a longer peroid (see http://ww.wp.xz.cn/support/topic/plugin-public-post-preview-link-expiration?replies=12). Me too, so I forked the Public Post Preview project on Github and added an options dialog: https://github.com/bjoerne2/public-post-preview
It would be great if the feature gets part of the official release.
Best regards
Björn

http://ww.wp.xz.cn/plugins/public-post-preview/