Roll Observatory packages and add a roll script

packages/initialize/.status

Index: packages/initialize/.status
diff --git a/packages/initialize/.status b/packages/initialize/.status
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+# Copyright (c) 2014, 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.
+
+# Don't run any test-like files that show up in packages directories. It
+# shouldn't be necessary to run "pub install" in these packages, but if you do
+# it shouldn't break the tests.
+*/packages/*/*: Skip
+*/*/packages/*/*: Skip
+*/*/*/packages/*/*: Skip
+*/*/*/*/packages/*/*: Skip
+*/*/*/*/*/packages/*/*: Skip
+
+# tests that don't need to be ran after pub-build
+build/test/transformer_test: Skip
+build/test/initializer_cycle_error_test.initialize_test: Skip # Build time warning
+build/test/initializer_from_test.initialize_test: SkipByDesign
+
+# tests that need to run, but we use the bootstrap output instead
+# (build/test/foo.initialize.dart) which is renamed by the .test_config scripts.
+build/test/deferred_library_test: Skip
+build/test/initializer_custom_filter_test: Skip
+build/test/initializer_cycle_error_test: Skip
+build/test/initializer_from_test: Skip
+build/test/initializer_parts_test: Skip
+build/test/initializer_super_test: Skip
+build/test/initializer_test: Skip
+build/test/initializer_type_filter_test: Skip
+build/test/init_method_test: Skip
+
+# failing tests
+[ $compiler == none ]
+build/test/deferred_library_test.initialize_test: RuntimeError # Issue 22592
+
+[ $browser ]
+# All tests are for the standalone vm only
+build/test/*: Skip
+test/*: Skip