[COOK-3520] Add support for nginx spdy module

Signed-off-by: Seth Vargo <sethvargo@gmail.com>

recipes/http_spdy_module.rb

@@ -0,0 +1,23 @@
+#
+# Cookbook Name:: nginx
+# Recipe:: http_spdy_module
+#
+# Author:: Christoph Buente (<christoph@meinekleinefarm.org>)
+#
+# Copyright 2013, MeinekleineFarm.org
+#
+# 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.
+#
+
+node.run_state['nginx_configure_flags'] =
+  node.run_state['nginx_configure_flags'] | ["--with-http_spdy_module"]