Travis CI: Add testing for sytax errors and undefined names
Travis CI: Add testing for sytax errors and undefined names

Travis CI can auto-detect situations like #5, #6, #7, etc.
watson-developer-cloud/python-primer-companion-code,watson-developer-cloud/python-primer-companion-code,watson-developer-cloud/python-primer-companion-code,watson-developer-cloud/python-primer-companion-code