Update to 1.9.5: Bump Faraday to 0.9.0; Remove deprecated rspec :should ...

Hey Tinder folk,

We're using Tinder to connect to campfire and some of our dependencies are clashing so we thought we'd give you guys a PR to resolve some of the issues. I removed all the deprecated :should style testing and switched to :expect. More details are in the commits, but it's a pretty straightforward PR. Hopefully this GIF will encourage a quick merge!

Cheers!

![tinder-3](https://cloud.githubusercontent.com/assets/1808898/3831498/3716bb6e-1d94-11e4-8fde-55f85b0b36c8.gif)