add regression testing script

[amamory]

By running GoDonnie -l -f , it will generate a log file from a code. This feature can be used to create a regression test script for donnie. Requirements:

• a complete set of test codes to fully test donnie. The codes must be in all the supported languages to test also the translations;
• for each code there must be the expected log output;
• a script to run all the codes and compare the generated output against the expected output.

It would be nice to integrate it with some continuous integration. Travis CI perhaps .

[amamory]

examples of possibles ways to build the regression suite:

• https://github.com/numenta/nupic/blob/master/.travis.yml
  https://github.com/numenta/nupic/blob/master/ci/travis/script-run-tests.sh