Post Revision Timestamps

Following a suggestion from @Ryan McCue about making timestamps in post revisionsRevisions The WordPress revisions system stores a record of each saved draft or published update. The revision system allows you to see what changes were made in each revision by dragging a slider (or using the Next/Previous buttons). The display indicates what has changed in each revision. human readable, I’ve set up a test case that uses both human readable and W3C recommended timestamp formats.

All feedback and comments here, please.

#markup, #testing