first commit. Way too late.

client/coffee/controllers/topBarCtrl.coffee

@@ -0,0 +1,18 @@
+root = this;
+
+root.controllers.controller('topBarCtrl', ['$scope', '$location', ($scope, $location) ->
+    $scope.$on('$routeChangeSuccess', (next, current) ->
+        $scope.path = _.filter($location.path().split("/"), (s) -> s)
+        $scope.getHistoryUrl = (idx) ->
+            ret = "#/" + ($scope.path[i] for i in [0...idx]).join("/")
+            if $scope.path[idx] == "idx"
+                return ""
+            if idx == 0
+                ret += "servers"
+            else if idx == 1
+                ret += "/databases"
+            else if idx == 2
+                ret += "/collections"
+            return ret
+    )
+ ])