Style tweeks

Hi Bas,

Colour fix on 'Course and category management number of courses text' page, fix to the restore course page and the 'edit course settings' page where the width was just a little too big for the page on 1024 x 600 display (a part of the test for course restore).

Course restore goes from this:

![2014-03-23 16_03_36-course_ moodle 26](https://f.cloud.github.com/assets/1058419/2493955/de69e848-b2ad-11e3-87fe-1a1bb5241838.png)

to this:

![2014-03-23 17_05_03-course_ moodle 26](https://f.cloud.github.com/assets/1058419/2493956/ec1b66d8-b2ad-11e3-81ac-e7ac7c55e131.png)

Cheers,

Gareth