Add travis-ci file
Merge pull request #9 from swenson/master

Add travis-ci config file
Add support for scalacheck property matchers.
Add README, bump version, bump property matchers into `PropertyMatchers` which extends `Prop`.
Update README, fix StringPropertySpec, don’t make `PropertyMatchers` extend `Prop`.
Move property matchers into matchers/
Bump version to 0.8.1.