Merge pull request #10 from folieadrien/removes-code-smell

Removes code smell
Delete .npmignore
Merge pull request #11 from folieadrien/removes-code-smell

Delete .npmignore
add test examples writting on stderr
Merge pull request #12 from folieadrien/tests-stderr

add test examples writting on stderr
add more tests for runner status code
Merge pull request #13 from folieadrien/tests-stderr

add more tests for runner status code
removes some code smells
Merge pull request #14 from folieadrien/removes-code-smells

removes some code smells
Update IMAGES.md
Update README.md
moves some methods as private