Rakefile in static-1.0.1 vs Rakefile in static-1.0.3

@@ -1,5 +1,19 @@
+#
+# 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.
+#
+
 $LOAD_PATH.unshift(File.join(File.dirname(__FILE__), 'lib'))
 
 require "rake"
 require 'rake/clean'
 require "static/version"
@@ -38,7 +52,7 @@
      sh("cd spec && bundle exec rake spec")
   end
 end
 
 CLEAN.include [
-  '.bundle', 'Gemfile.lock', '*.gem'
+  '.bundle', '*.gem'
 ]