upgrade dartdoc, stack_trace in DEPS

DEPS

Index: DEPS
diff --git a/DEPS b/DEPS
index 0d7d44be24438dc6a84aec08b17341dc931b6af0..40d57744ea40835dbfce7e63b5042b7a1df3f2c4 100644
--- a/DEPS
+++ b/DEPS
@@ -51,7 +51,7 @@ vars = {
   "crypto_rev" : "@2df57a1e26dd88e8d0614207d4b062c73209917d",
   "csslib_tag" : "@0.12.0",
   "dart2js_info_rev" : "@a6bdb61f8feaaed9b50c330e72bc035271fb6e0f",
-  "dartdoc_rev" : "@1f54e8c2119d6d78ee7d19b477b8a90c27e1ea05",
+  "dartdoc_rev" : "@61bfb136ec1d314b977cfbfdbc79097243632ccf",
   "dart_services_rev" : "@7aea2574e6f3924bf409a80afb8ad52aa2be4f97",
   "dart_style_tag": "@0.2.0",
   "dev_compiler_rev": "@0.1.9",
@@ -97,7 +97,7 @@ vars = {
   "shelf_web_socket_tag": "@0.0.1+4",
   "source_map_stack_trace_tag": "@1.0.4",
   "source_span_tag": "@1.2.0",
-  "stack_trace_tag": "@1.3.4",
+  "stack_trace_tag": "@1.4.2",
   "string_scanner_tag": "@0.1.4",
   "sunflower_rev": "@879b704933413414679396b129f5dfa96f7a0b1e",
   "test_tag": "@0.12.3+8",