Simplify Diffusion main view

Summary:
Currently, Diffusion has very complex views. After three years I'm not really used to them and rarely use many of these options.

Simplify the browse and history views:

  - Put the browse view on top.
  - Move dates to the right.
  - Remove "History" and "Edit" links from the browse view. You can access these actions by clicking the file/path.
  - Remove "Browse" link from the history view. You can access this action by clicking the commit.
  - Remove "Change Type", which is essentially never useful, from the history view.
  - Add some tweaks for mobile.

Test Plan: {F153931}

Reviewers: btrahan, chad

Reviewed By: chad

Subscribers: epriestley, zeeg

Differential Revision: https://secure.phabricator.com/D9085

src/applications/diffusion/controller/DiffusionRepositoryController.php

@@ -89,18 +89,18 @@ final class DiffusionRepositoryController extends DiffusionController {
       $readme = null;
     }
 
-    $content[] = $this->buildHistoryTable(
-      $history_results,
-      $history,
-      $history_exception,
-      $handles);
-
     $content[] = $this->buildBrowseTable(
       $browse_results,
       $browse_paths,
       $browse_exception,
       $handles);
 
+    $content[] = $this->buildHistoryTable(
+      $history_results,
+      $history,
+      $history_exception,
+      $handles);
+
     try {
       $content[] = $this->buildTagListTable($drequest);
     } catch (Exception $ex) {
@@ -161,7 +161,6 @@ final class DiffusionRepositoryController extends DiffusionController {
 
     $view = id(new PHUIPropertyListView())
       ->setUser($user);
-    $view->addProperty(pht('Callsign'), $repository->getCallsign());
 
     $project_phids = PhabricatorEdgeQuery::loadDestinationPHIDs(
       $repository->getPHID(),