Pagenavigation don't use the Date for Ordering for next and prev buttons

### Tracker

http://joomlacode.org/gf/project/joomla/tracker/?action=TrackerItemEdit&tracker_item_id=33901&start=0

### Testing
1. Install Joomla using testing sample data
2. create one more article (in sum 3) into the category "Park Blog" (e.g. third Blog Post)
3. make sure "Date for Ordering" is "Published" (or Use Global) 
* BE --> System --> Global Configuration --> Articles --> Shared Options --> Date for Ordering
4. make sure "Date for Ordering" is "Use Global" 
* BE --> Menus --> All Front End Views --> Article Category Blog --> Blog Layout --> Date for Ordering)
5. Make sure that the articles have this attributes:
| Article | Created Date | Publish Date |
| ------ | ------- | ------- |
| First Blog Post | 03-01-2014 00:00:00 | 12-01-2014 00:00:00 |
| Second Blog Post | 01-01-2014 00:00:00 | 11-01-2014 00:00:00 |
| Third Blog Post | 02-01-2014 00:00:00 | 10-01-2014 00:00:00 |
6. Access the Article Category Blog Menu entry
7. See the ordering (by Publish Date) is correct
8. Access the First Blog Post
9. Use the Next Button
10. see that the third Blog Post is shown
11. apply patch
12. do 6 - 9 again
13. see that it work now.

### Expected behavior

Order by publish date:
1. First Blog Post
2. Second Blog Post
3. Third Blog Post

### Current behavior

Order by created date:
1. First Blog Post
2. Third Blog Post
3. Second Blog Post

### Joomla-Bugs.de reference (german)
http://www.joomla-bugs.de/forum/index.php?topic=595.0