Added support for testing different interaction models
Extend Reporters

For the TestCase, the graph adds in details about tests that have been
implemented, but are pending approval

For the Overall Report, improve the hovor color for better
visualization.

Change-Id: If25519137edc9d92965697d5b29f69381d2ad8cf
Signed-off-by: ttsanton <ttsanton@us.ibm.com>
add tests for client hints (Prefer and Slug headers)
don't fail tests on errors deleting test resources

At the end of many tests, we use HTTP DELETE to clean up test resources.
Don't fail a test simply because the clean up failed. It's not what's
being tested.
Merge pull request #49 from ttsanton/master

Extend Reporters
Merge pull request #50 from spadgett/master

add tests for client hints (Prefer and Slug headers)
Added list of test cases up for approval to report