Comment Dialog: Docking
When reviews have the tendency to get longer the Comment Dialog

becomes harder to keep track of. To fix this,the comment

dialog has been docked to the page. This means when users open

up a comment, the dialog will stay on the page with the user

during the review process.
Users can drag around the dialog with ease with the use of

jQuery UI and standard jQuery mouse events. Functions have been

implemented to ensure that the Comment Dialog remains in the content

area. This is to prevent users from accidentally moving the dialog 

off-screen.

Ran and passed all of the JavaScript Unit Tests. 
Added a new test to check whether the position was being set 

correctly on mousedown and mouseup.