added code to only allow the author of an article to make modifications.
sorted article listing by most recently updated first.
Merge branch 'master' into wiki
Merge branch 'master' into wiki
fixed editing of articles.
removed test scaffold which was created to compare some code.
added approve and reject buttons on each article page. status is changed to 3 when approved and 2 for rejected and 1 for submitted. this is done by sending a hidden field with the relevant value and the update action takes care of the update.