Update to rubyzip 1.1.6

Author: bitops

docx.gemspec

@@ -12,7 +12,7 @@ Gem::Specification.new do |s|
   s.files       = Dir["README.md", "LICENSE.md", "lib/**/*.rb"]
 
   s.add_dependency 'nokogiri', '~> 1.5'
-  s.add_dependency 'rubyzip',  '~> 1.0'
+  s.add_dependency 'rubyzip',  '~> 1.1.6'
 
   s.add_development_dependency 'rspec'
 end