Non-floating menu version

Also made the navigation bar less harsh in the gradient. Though need to decide how to deal with the popup menus on the processors as they're currently just "floating" (much worse than in previous design) now.
Menu help shows in navigation

So this is an experiment based on issue #729 to see if I can make it clear how each feature works. Each menu item had a tooltip, but I personally never found them useful because the mouse never hovers long enough and then it automatically goes away. Maybe this is a good change?

My only concern is it might annoy the pro users, so maybe there's a way of turning it off?
tweak menu boldness
embed carries class and id of anchor element
Merge branch 'master' of github.com:remy/jsbin
fixed menu in IE9+
merged fixed
Merge pull request #732 from remy/feature/menu-update

Feature: menu update