add test cases for containers and RDF source resources

Contribute test cases for direct and basic containers as well as RDF
source resources based on requirements from the specification. Create an
HTML report with summary of passed, failed, and skipped tests by
requirement level. Some tests are still stubs waiting to be implemented.
Merge pull request #1 from spadgett/master

add test cases for containers and RDF source resources
reformat
improved error message by showing the original cause
cosmetic details
starting to play with the new infrastrcuture, addid the fist LDP-NRs tests from Marmotta
general refactorization by importing the generated LDP vocabulary
Update Html reporter so that it will generate, as well as apply the .css
style file.

Change-Id: If9e4505b867585b6cbbb6873a83b8537f5112dd6
Signed-off-by: ttsanton <ttsanton@us.ibm.com>
Merge pull request #2 from ttsanton/master

Update Html reporter so that it will generate, apply the .css file