Fix links on two pages.

Go to:

http://next.dev.curriki.org/xwiki/bin/view/Main/FeaturedGroups
http://next.dev.curriki.org/xwiki/bin/view/Groups/CreateNewGroup

In both of the above pages, there are links that show an underline. I believe our standard is to just have blue text. If correct, forward to Guillaume, but this should not hold up 1.5.1 in any way.

Trivial priority.