Lock edition of past days post

With this plugin active, it’s impossible to edit posts that have a day of creation witch is not today.

In brief, the edition possibility is desactivated after 12pm, even if you are the author.

An exception is added since version 0.3 : if a posts are stickies, the edition is possible until the stickies tags are unchecked. This work with the standard sticky feature of wordpress and with WP-Sticky plugin.

Only the administrator still have the possibility of edition.