scheduler 5.x-1.13

This is mostly a bug fix release, addressing the following issues since 5.x-1.12:

• #230836: CCK date field shows blank after the node is published.
• #236841: Publish dates no longer work if time part omitted
• #190860: Scheduler unpublishes nodes when "Publish on:" date is set to the past.
• #245967: Add sort information for views
• #249299: Create new German locale file for version 5.x

And small fixes/additions since 5.x-1.13-rc1:

• #251129: unnecessary query on every node_load
• #197114: views filter and argument integration
• #224535: No publish date means node goes unpublished
• #221330: Timecheck function not reporting actual times

The following notable issue is still open:

• #252116: Scheduler should persist timestamps in UTC. This makes views handle 'publish on' and 'unpublish on' times with an extra timezone shift. However, I hope we can live with this until 5.x-1.14.

Thanks for everyone involved in this release!