Add specs
Make specs pass on Ruby 1.9
Add support for offline checks
Merge pull request #1 from sferik/ruby_1.9

Make code work on Ruby 1.9
Version 1.0.0!!!
Next version: 1.0.1
Branch to 2.0 for backwards compat
Merge pull request #2 from sferik/offline_mode

Add support for offline checks