Issue #124 Added Search interface.
Issue #124 Added RtSearch stub class, as well as unit and integration
test classes.
Issue #124 Added Github.search() method, MkSearch and MkSearchTest
classes.
Issue #124 Suppressed PMD TooManyMethods warning for MkGithub.
Merge pull request #149 from carlosmiranda/124

#149: pull request Issue #124: Added Search interface and Github.search() method.