Provide convenience method addTextCrumb() to PhabricatorCrumbsView

Summary: We currently have a lot of calls to `addCrumb(id(new PhabricatorCrumbView())->...)` which can be expressed much more simply with a convenience method. Nearly all crumbs are only textual.

Test Plan:
  - This was mostly automated, then I cleaned up a few unusual sites manually.
  - Bunch of grep / randomly clicking around.

Reviewers: btrahan, chad

Reviewed By: btrahan

CC: hach-que, aran

Differential Revision: https://secure.phabricator.com/D7787

src/applications/project/controller/PhabricatorProjectMembersEditController.php

@@ -111,15 +111,11 @@ final class PhabricatorProjectMembersEditController
       ->setHeaderText($title)
       ->setForm($form);
 
-    $crumbs = $this->buildApplicationCrumbs($this->buildSideNavView());
-    $crumbs->addCrumb(
-      id(new PhabricatorCrumbView())
-        ->setName($project->getName())
-        ->setHref('/project/view/'.$project->getID().'/'));
-    $crumbs->addCrumb(
-      id(new PhabricatorCrumbView())
-        ->setName(pht('Edit Members'))
-        ->setHref($this->getApplicationURI()));
+    $crumbs = $this->buildApplicationCrumbs($this->buildSideNavView())
+      ->addTextCrumb(
+        $project->getName(),
+        '/project/view/'.$project->getID().'/')
+      ->addTextCrumb(pht('Edit Members'), $this->getApplicationURI());
 
     return $this->buildApplicationPage(
       array(