Minor README change
Use -Wall on travis only
Run doctests on travis only (fixes #12)
Bump version
Switch to hspec2
Test the request function and let it take headers
Ignore cabal sandbox artifacts
Remove lower bounds from test-suite section

(they are picked up from the library section)
Make implementation of `request` fit it's documentation

(read: Take method, path, headers, body - in that order, similar to how
the corresponding HTTP request would look like)
Whitespace change
Rename test/Test/Hspec/Wai/RequestSpec.hs to test/Test/Hspec/WaiSpec.hs

(to maintain a 1-to-1 relationship between source code files and
corresponding tests)
Bump version
Minor indent tweak
Add link to hackage to README
GHC 7.4.* compatibility
Bump version
Use predicate for header matching