Changed Sdp to SDP.
Updated gemspec to have appropriate summary and description.
Restructured library directory format. Adding minitest.
Updated version details in gemspec. Added functional minitest spec.
Cleaned up version test. Added minitest runs to Rakefile.
Added Guardfile.
Updated README and created CONTRIBUTING.md to outline generic details of the project.
Added homepage link in gemspec.
Added CHANGELOG and updated README accordingly.
Simplified installation in README.
Added travis config.
Added build status to README.
Merge branch 'feature/initial' into develop
Updated build status in README to follow develop branch.