Place popups on the top where possible

Most of our earlier code was positioning popups above their links,
rather than below. We should stick to that, while using auto-positioning
so they are positioned on the bottom when necessary.

Author: Dylan McCall

python_env/src/cc.engine/cc/engine/templates/macros_templates/deed.html

@@ -255,7 +255,7 @@ <h2>
           var popupTitleHtml = $('.hd', popupElem).html();
           var popupBodyHtml = $('.bd', popupElem).html();
           $(helpLinkElem).popover({
-            placement: 'auto bottom',
+            placement: 'auto top',
             trigger: 'focus',
             title: popupTitleHtml ? popupTitleHtml : undefined,
             content: popupBodyHtml ? popupBodyHtml : undefined,