Merge pull request #2389 from rhamilto/h1-tweak

Automatic merge from submit-queue.

Adjust h1 margins so page header border aligns with left nav item

The misalignment of the page-header bottom border and the left nav divider bugs me.

![screen shot 2017-10-27 at 9 44 00 am](https://user-images.githubusercontent.com/895728/32107231-fcade1d8-bafb-11e7-8873-68f3797d65be.PNG)

It's better to have them align?

![screen shot 2017-10-27 at 9 43 48 am](https://user-images.githubusercontent.com/895728/32107267-17c4a556-bafc-11e7-8986-9f5f19f19d93.PNG)

app/styles/_typography.less

@@ -6,12 +6,14 @@
     margin-bottom: 0;
     margin-left: -20px;
     margin-right: -20px;
-    margin-top: 20px;
-    padding-left: 20px;
-    padding-right: 20px;
+    margin-top: 0;
+    padding: 18px 20px 19px;
     .actions {
       margin-top: 0;
     }
+    h1 {
+      margin: 0;
+    }
   }
   .page-header-link {
     display: inline-block;
@@ -20,14 +22,6 @@
     margin: 0 10px;
     white-space: nowrap;
   }
-  // @media (min-width: @screen-md-min) {
-  //   .page-header.page-header-bleed-left {
-  //     margin-left: -30px;
-  //     padding-left: 30px;
-  //     margin-right: -30px;
-  //     padding-right: 30px;
-  //   }
-  // }
   .section-header{
     .page-header();
     border-bottom: none;
@@ -36,6 +30,7 @@
 }
 
 h1 {
+  margin-top: 18px;
   &.contains-actions {
     .word-break();
   }