Vendor the external cookbooks

Knife-Zero doesn't include Berkshelf support, so vendoring everything in
the repo is convenient again

cookbooks/apache2/attributes/mod_auth_cas.rb

@@ -0,0 +1,21 @@
+#
+# Cookbook:: apache2
+# Attributes:: mod_auth_cas
+#
+# Copyright:: 2013, Chef Software, 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.
+#
+
+default['apache']['mod_auth_cas']['from_source']     = false
+default['apache']['mod_auth_cas']['source_revision'] = 'v1.0.9.1'