Added basic auth info to the readme and fixed an error in the code of the chemists example
Cleaned up basic auth gherkin
Removed the wip tag and simplified it a bit
Bumped version number to 3.9.0.rc2 to prepare for the release
Updated CHANGELOG.md gemspec and readme heading for 3.9.0.rc2 release.
Merge branch 'release/3.9.0.rc2' into develop