Bug 912889 - Add tooltips and help to App Manager. r=paul.rouget
Bug 913890 - Remove dead action bar code, formerly associated with the Awesome Bar. r=mleibovic
Bug 914180 - Backout moving findbar to the top. r=dao

Backs out changeset 452ca8b779f3 (bug 893446), changeset e1bf70be67ec (bug 893011), and changeset 60865db5f5dc (bug 869543).