Update markdown and dartdoc in DEPS, remove petitparser

DEPS

 # Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 vars = {
   # The dart_root is the root of our sdk checkout. This is normally
   # simply sdk, but if using special gclient specs it can be different.
   "dart_root": "sdk",
 
   # We use mirrors of all github repos to guarantee reproducibility and
@@ skipping 19 matching lines @@
   "gyp_rev": "@6ee91ad8659871916f9aa840d42e1513befdf638",
   "co19_rev": "@d4767b4caea3c5828ad8e053cd051d44a59061af",
 
   # Revisions of GN related dependencies.
   "buildtools_revision": "@3d2e47bf14e4e67816a53e304dea422fa18f9180",
 
   "gperftools_revision": "@7822b5b0b9fa7e016e1f6b46ea86f26f4691a457",
 
   # Revisions of /third_party/* dependencies.
   "args_tag": "@0.13.5",
-  "async_tag": "@1.11.1",
+  "async_tag": "@1.11.2",
   "barback-0.13.0_rev": "@34853",
   "barback-0.14.0_rev": "@36398",
   "barback-0.14.1_rev": "@38525",
   "barback_tag" : "@0.15.2+9",
   "bazel_worker_tag": "@0.1.1",
   "boolean_selector_tag" : "@1.0.2",
   "boringssl_gen_rev": "@922830c0aad900dd3d143eef1ba06faa83fe263b",
   "boringssl_rev" : "@8d343b44bbab829d1a28fdef650ca95f7db4412e",
   "charcode_tag": "@1.1.0",
   "chrome_rev" : "@19997",
   "cli_util_tag" : "@0.0.1+3",
   "code_transformers_tag": "@v0.4.2+3",
   "collection_tag": "@1.9.1",
   "convert_tag": "@2.0.1",
   "crypto_tag" : "@2.0.1",
   "csslib_tag" : "@0.13.2",
-  "dart2js_info_tag" : "@0.2.7+1",
+  "dart2js_info_tag" : "@0.2.7+2",
   "dart_services_rev" : "@7aea2574e6f3924bf409a80afb8ad52aa2be4f97",
   "dart_style_tag": "@0.2.10",
-  "dartdoc_tag" : "@v0.9.7+3",
+  "dartdoc_tag" : "@v0.9.7+4",
   "fixnum_tag": "@0.10.5",
   "func_tag": "@0.1.0",
   "glob_tag": "@1.1.3",
   "html_tag" : "@0.13.0",
   "http_multi_server_tag" : "@2.0.2",
   "http_parser_tag" : "@3.0.2",
   "http_tag" : "@0.11.3+9",
   "http_throttle_rev" : "@284344cd357e435c6c8ff9a4a21f02b9e384a541",
   "idl_parser_rev": "@7fbe68cab90c38147dee4f48c30ad0d496c17915",
   "initialize_tag": "@v0.6.2+2",
-  "intl_tag": "@0.13.1",
+  "intl_tag": "@0.14.0",
   "isolate_tag": "@0.2.3",
   "jinja2_rev": "@2222b31554f03e62600cd7e383376a7c187967a1",
   "json_rpc_2_tag": "@2.0.2",
   "kernel_rev": "@449803b82e850a41148e636db1a6e4a848284aed",
   "linter_tag": "@0.1.27",
   "logging_tag": "@0.11.3+1",
-  "markdown_rev": "@4aaadf3d940bb172e1f6285af4d2b1710d309982",
+  "markdown_tag": "@0.11.0",
   "matcher_tag": "@0.12.0+2",
   "metatest_tag": "@0.2.2+2",
   "mime_rev": "@75890811d4af5af080351ba8a2853ad4c8df98dd",
   "mustache4dart_tag" : "@v1.0.10",
   "oauth2_tag": "@1.0.2",
   "observatory_pub_packages_rev": "@26aad88f1c1915d39bbcbff3cad589e2402fdcf1",
   "observe_tag": "@0.13.5",
   "package_config_tag": "@1.0.0",
   "package_resolver_tag": "@1.0.2",
   "path_tag": "@1.3.9",
@@ skipping 143 matching lines @@
       (Var("github_dartlang") % "isolate") + Var("isolate_tag"),
   Var("dart_root") + "/third_party/pkg/json_rpc_2":
       (Var("github_mirror") % "json_rpc_2") + Var("json_rpc_2_tag"),
   Var("dart_root") + "/third_party/pkg/kernel":
       (Var("github_mirror") % "kernel") + Var("kernel_rev"),
   Var("dart_root") + "/third_party/pkg/linter":
       (Var("github_mirror") % "linter") + Var("linter_tag"),
   Var("dart_root") + "/third_party/pkg/logging":
       (Var("github_mirror") % "logging") + Var("logging_tag"),
   Var("dart_root") + "/third_party/pkg/markdown":
-      (Var("github_mirror") % "markdown") + Var("markdown_rev"),
+      (Var("github_mirror") % "markdown") + Var("markdown_tag"),
   Var("dart_root") + "/third_party/pkg/matcher":
       (Var("github_mirror") % "matcher") + Var("matcher_tag"),
   Var("dart_root") + "/third_party/pkg/metatest":
       (Var("github_mirror") % "metatest") + Var("metatest_tag"),
   Var("dart_root") + "/third_party/pkg/mime":
       (Var("github_mirror") % "mime") + Var("mime_rev"),
   Var("dart_root") + "/third_party/pkg/mustache4dart":
       Var("chromium_git")
       + "/external/github.com/valotas/mustache4dart.git"
       + Var("mustache4dart_tag"),
@@ skipping 236 matching lines @@
       "--no_auth",
       "--no_resume",
       "--bucket",
       "dart-dependencies",
       "--platform=win32",
       "--directory",
       Var('dart_root') + "/third_party/drt_resources",
     ],
   },
   {
-    "name": "petitparser",
-    "pattern": ".",
-    "action": [
-      "download_from_google_storage",
-      "--no_auth",
-      "--no_resume",
-      "--bucket",
-      "dart-dependencies",
-      "--extract",
-      "-s",
-      Var('dart_root') + "/third_party/pkg/petitparser.tar.gz.sha1",
-    ],
-  },
-  {
     "name": "unittest",
     # Unittest is an early version, 0.11.6, of the package "test"
     # Do not use it in any new tests.
     "pattern": ".",
     "action": [
       "download_from_google_storage",
       "--no_auth",
       "--no_resume",
       "--bucket",
       "dart-dependencies",
@@ skipping 50 matching lines @@
     # Pull clang if needed or requested via GYP_DEFINES.
     'name': 'gn_clang',
     'pattern': '.',
     'action': ['python', 'sdk/tools/clang/scripts/update.py', '--if-needed'],
   },
   {
     "pattern": ".",
     "action": ["python", Var("dart_root") + "/tools/gyp_dart.py"],
   },
 ]