Bug 25135: Improve clarity and navigation of columns settings administration

Bug 25135: Improve clarity and navigation of columns settings administration

This patch makes some modifications to the columns setting
administration template so that the headings are a little clearer.
In-page navigation is added for each section.

To test, apply the patch and go to Administration -> Columns settings.

 - Confirm that the collapsing panels work correctly.
 - Expand a section and confirm that the "jump to" links work correctly.

Signed-off-by: Bernardo Gonzalez Kriegel <bgkriegel@gmail.com>
Looks good, works good.

Signed-off-by: Katrin Fischer <katrin.fischer.83@web.de>
Signed-off-by: Martin Renvoize <martin.renvoize@ptfs-europe.com>