Update tests given recent changes to request building.

Now more methods have an EMPTY body by default.
Merge branch 'master' of https://github.com/bitonic/http-streams into fix-test-cases
Expose setTransferEncoding

Fix test suite by exposing setTransferEncoding function, complement of
setContentLength, inherited from **http-common**.

Bump API version to 0.7.1
Merge branch 'fix-test-cases'
Refine http-common dependency