Unit testing support added.

RSpec support has been added for unit testing the Specify framework. This
ties into code coverage and reporting tools. There is a potential issue
if I have an acceptance test example that runs as part of the code
repository. The issue is that Specify will be hooking into RSpec to run
the acceptance tests and that may conflict with the standard unit test
execution performed by RSpec.
Updates for build reporting.

A task was adding for executing unit test execution. Also, Rubinius
execution fails due to a Bundler incompatibility. The travis line
for Rubinius execution has been updated to reflect a specific version.
Modifications to Ruby builds to handle Bundler incompatibility.
Final (hopefully) updates to build and test coverage.

It was necessary to remove Rubinius from the current continuous
integration environment as it doesn't appear to support the latest
bundler versions. Some initial dashboard badges have been added to
the README.