Added help icon.

res/app/components/stf/common-ui/help-icon/help-icon-directive.js

@@ -0,0 +1,13 @@
+require('./help-icon.css')
+
+module.exports = function clearButtonDirective() {
+  return {
+    restrict: 'EA',
+    replace: true,
+    scope: {
+      topic: '@',
+      tooltip: '@'
+    },
+    template: require('./help-icon.jade')
+  }
+}

res/app/components/stf/common-ui/help-icon/help-icon.jade

@@ -0,0 +1,2 @@
+a(ng-href='/#!/docs/{{topic}}', tooltip='{{tooltip}}', tooltip-placement='left').btn.btn-xs.btn-primary-outline.pull-right.transparent-border
+    i.fa.fa-question-circle

res/app/components/stf/common-ui/help-icon/index.js

@@ -0,0 +1,2 @@
+module.exports = angular.module('stf.help-icon', [])
+  .directive('helpIcon', require('./help-icon-directive'))