modified and wrote tests for displaying no objects to sniff and no smells found in html

For Features, Step Definitions, and Hooks
Travis CI -- build test for displaying html

added a space
added temp directory and added location variables for tests and erb

added make_dir method to make and delete a temp directory and file
Merge pull request #52 from ritchedt/features/no_smells_html

Modified and wrote tests for displaying no objects to sniff and no smells found in html. Also added temp directory and location variables for tests and erb