Roll Observatory packages and add a roll script

packages/cli_util/tool/travis.sh

Index: packages/cli_util/tool/travis.sh
diff --git a/packages/cli_util/tool/travis.sh b/packages/cli_util/tool/travis.sh
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index 0000000000000000000000000000000000000000..e8e10b79502a7dd4f5842b8923fa508c73d3a196
--- /dev/null
+++ b/packages/cli_util/tool/travis.sh
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+#!/bin/bash
+
+# Copyright (c) 2015, 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.
+
+# Fast fail the script on failures.   
+set -e
+
+# Verify that the libraries are error free.
+dartanalyzer --fatal-warnings \
+  lib/cli_util.dart \
+  test/cli_util_test.dart
+
+# Run the tests.
+dart test/cli_util_test.dart
+
+# Install dart_coveralls; gather and send coverage data.
+if [ "$COVERALLS_TOKEN" ]; then
+  pub global activate dart_coveralls
+  pub global run dart_coveralls report \
+    --token $COVERALLS_TOKEN \
+    --retry 2 \
+    --exclude-test-files \
+    test/cli_util_test.dart
+fi