Rename PhabricatorApplication subclasses

Summary: Ref T5655. Some discussion in D9839. Generally speaking, `Phabricator{$name}Application` is clearer than `PhabricatorApplication{$name}`.

Test Plan:
# Pinned and uninstalled some applications.
# Applied patch and performed migrations.
# Verified that the pinned applications were still pinned and that the uninstalled applications were still uninstalled.
# Performed a sanity check on the database contents.

Reviewers: btrahan, epriestley, #blessed_reviewers

Reviewed By: epriestley, #blessed_reviewers

Subscribers: hach-que, epriestley, Korvin

Maniphest Tasks: T5655

Differential Revision: https://secure.phabricator.com/D9982

src/applications/paste/application/PhabricatorPasteApplication.php

@@ -0,0 +1,64 @@
+<?php
+
+final class PhabricatorPasteApplication extends PhabricatorApplication {
+
+  public function getBaseURI() {
+    return '/paste/';
+  }
+
+  public function getIconName() {
+    return 'paste';
+  }
+
+  public function getTitleGlyph() {
+    return "\xE2\x9C\x8E";
+  }
+
+  public function getApplicationGroup() {
+    return self::GROUP_UTILITIES;
+  }
+
+  public function getShortDescription() {
+    return pht('Share Text Snippets');
+  }
+
+  public function getRemarkupRules() {
+    return array(
+      new PhabricatorPasteRemarkupRule(),
+    );
+  }
+
+  public function getRoutes() {
+    return array(
+      '/P(?P<id>[1-9]\d*)(?:\$(?P<lines>\d+(?:-\d+)?))?'
+        => 'PhabricatorPasteViewController',
+      '/paste/' => array(
+        '(query/(?P<queryKey>[^/]+)/)?' => 'PhabricatorPasteListController',
+        'create/' => 'PhabricatorPasteEditController',
+        'edit/(?P<id>[1-9]\d*)/' => 'PhabricatorPasteEditController',
+        'comment/(?P<id>[1-9]\d*)/' => 'PhabricatorPasteCommentController',
+      ),
+    );
+  }
+
+  protected function getCustomCapabilities() {
+    return array(
+      PasteCapabilityDefaultView::CAPABILITY => array(
+        'caption' => pht('Default view policy for newly created pastes.'),
+      ),
+    );
+  }
+
+  public function getQuickCreateItems(PhabricatorUser $viewer) {
+    $items = array();
+
+    $item = id(new PHUIListItemView())
+      ->setName(pht('Paste'))
+      ->setIcon('fa-clipboard')
+      ->setHref($this->getBaseURI().'create/');
+    $items[] = $item;
+
+    return $items;
+  }
+
+}