Modified Makefile and circle.yml. #6492

    * Makefile includes command to run docker before each test. This
      allows docker containers to be separate per test.
    * CircleCI yml no longer has the run docker command.
Modified elasticsearch by adding categories and nodes. #6492

    * Boosted name and code fields.
    * Refactored tests - index is deleted at end of every test.
Merge pull request #7 from PritishC/feature/task-6492

Modified elasticsearch by adding categories and nodes. #6492