Move files in Phabricator one level up

Summary:
- `kill_init.php` said "Moving 1000 files" - I hope that this is not some limit in `FileFinder`.
- [src/infrastructure/celerity] `git mv utils.php map.php; git mv api/utils.php api.php`
- Comment `phutil_libraries` in `.arcconfig` and run `arc liberate`.

NOTE: `arc diff` timed out so I'm pushing it without review.

Test Plan:
/D1234
Browsed around, especially in `applications/repository/worker/commitchangeparser` and `applications/` in general.

Auditors: epriestley

Maniphest Tasks: T1103

src/applications/diffusion/query/filecontent/DiffusionGitFileContentQuery.php

@@ -0,0 +1,65 @@
+<?php
+
+/*
+ * Copyright 2011 Facebook, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+final class DiffusionGitFileContentQuery extends DiffusionFileContentQuery {
+
+  protected function executeQuery() {
+    $drequest = $this->getRequest();
+
+    $repository = $drequest->getRepository();
+    $path = $drequest->getPath();
+    $commit = $drequest->getCommit();
+
+    if ($this->getNeedsBlame()) {
+      list($corpus) = $repository->execxLocalCommand(
+        '--no-pager blame -c -l --date=short %s -- %s',
+        $commit,
+        $path);
+    } else {
+      list($corpus) = $repository->execxLocalCommand(
+        'cat-file blob %s:%s',
+        $commit,
+        $path);
+    }
+
+    $file_content = new DiffusionFileContent();
+    $file_content->setCorpus($corpus);
+
+    return $file_content;
+  }
+
+
+  protected function tokenizeLine($line) {
+    $m = array();
+    // sample lines:
+    //
+    // d1b4fcdd2a7c8c0f8cbdd01ca839d992135424dc
+    //                       (     hzhao   2009-05-01  202)function print();
+    //
+    // 8220d5d54f6d5d5552a636576cbe9c35f15b65b2
+    //                       (Andrew Gallagher       2010-12-03      324)
+    //                             // Add the lines for trailing context
+    preg_match('/^\s*?(\S+?)\s*\(\s*([^)]*)\s+\d{4}-\d{2}-\d{2}\s+\d+\)(.*)?$/',
+               $line, $m);
+    $rev_id = $m[1];
+    $author = $m[2];
+    $text = idx($m, 3);
+    return array($rev_id, $author, $text);
+  }
+
+}