Started some changes to acknowledgments.html
Temporary fix to menu item highlighting

When a page has a sidebar menu, the items you can get to from that menu
do not properly highlight the parent page's link in the top menu bar.

This fix allows you to add these subpages to site.yaml with titles of
"hide" in order for them to still not be displayed in that dropdown menu
item's menu, but still have the menu item be highlighted (because it
technically contains a link to the current page).

This only works for dropdown menu items, and not for standard menu
links.
Merge branch 'master' of github.com:aims-group/sample