Merge pull request #1 from sol/master

contains -> contain
Use assertBool for better message for failed test case
Assert redirect
It can be simple
Handle invalid response header for 302
Test status code
Add travis-ci setting
Tighen upper bound
oops
Make it executable
downgrading for blogging
Writing
wip
updated
update
update
改行を追加
Remove tabs
Update hspec
Fix dependency & test

- scotty isn't ready for WAI2.0
- hspec-expectations has `shouldContain` since 0.3.3