Bring URL field back to full view mode of links.

#6365 

This PR reverts the work from #6070 and also makes the title links in the LOP widget to be plain text in "full" view mode. 

Before:
![selection_347](https://cloud.githubusercontent.com/assets/4497748/3534719/f4778170-07f0-11e4-885f-bd0bfc545d6e.png)

After:
![selection_348](https://cloud.githubusercontent.com/assets/4497748/3536599/b4f1128c-0813-11e4-9119-ec4d0c03748e.png)

in the sv_list the title, sidebar_teaser, teaser, and link view modes should remain the same.  The only one that should be impacted is the "full node" view.