Feature/ordering

This improves the UX of the ordering fields, see images below. Also some padding have been improved. 

If you've set a tdwidth for the ordering column, you have to remove it so the columns width behaves like the images shown below. Else the width is just a bit too wide.

This PR also includes https://github.com/akeeba/fof/pull/346 which was required for parsing LESS. I suggest to accept this PR and delete that other PR.

![schermafbeelding 2014-05-17 om 14 29 29](https://cloud.githubusercontent.com/assets/4896035/3004834/e98113aa-ddbe-11e3-9fe0-5e9419a9ce58.png)

![schermafbeelding 2014-05-17 om 14 29 05](https://cloud.githubusercontent.com/assets/4896035/3004835/eca0e3b2-ddbe-11e3-84c0-444b35f7adb4.png)