Move the "Display post information on" settings from Theme configuration to Content type

Issue Summary

[Not sure where the best place for this suggestion is, it relates to theme as well as nodes and I could not find any other issues on the topic.]

Now that each content type has its own configuration page, the "Display post information on" field should be moved out of the global theme configuration page.

For example, if I wanted to make enable post information for story nodes, I should choose this setting at /admin/content/types/story instead of admin/build/themes/settings.

It would also be nice if this data was treated like any other content field so that it could be managed administered through the Manage and Display tabs

So for example, I could go to
http://example.com/admin/content/types/story/fields
and use the weight system to position the output above or below my title or body etc.

and I could go to
http://example.com/admin/content/types/story/display
and choose my Label and even the date format for Teaser and Full