style width update

Remove fixed width of post previews, defaults to "take as much as you can"
style width update

Bug fix for the comments being pushed below the sidebar
style width update

Maximize width for text area's like 'new post' and 'edit tags' fields.
style width update

Removal of max-width.
style width update

Moves the "Reply >>" and "new post" field to be alligned with the post bodies rather then the authors.

Removal of width limits.
It looks like the 'single-forum-post' class should go on the <div id="a-index"> element, but it doesn't appear there?
style width update 

Removal of max width.
not sure if an ad is/was meant to go on this side.
style width update

Removal of max-width.
Couldn't find where the "quick-edit-div" was, but should be fine.
Also fixing my lack of spaces from the previous edit.
Merge pull request #936 from Lightforger/master

css fix for wide screens, bugfix + few more width removals