adds vendor to .gitignore for bundler
adds dnsruby requirement to lib/rspec-dns.rb to hide dnsruby from users
removes denpendency on Resolv
Merge pull request #11 from otahi/modify_dnsruby_requirement

Modify dnsruby requirement
rspec-dns 0.1.1
Replace deprecated rspec methods with new ones
Merge pull request #12 from tatsuyafw/deprecated_rspec_methods

Replace deprecated rspec methods with new ones
Release v0.1.2