Update languages.py

adding czech translation
Merge pull request #374 from starenka/patch-1

Update languages.py
new release 0.2.19
Updating documentation for languages. refs #377
Document Step.passed and Step.failed
Merge pull request #383 from lorin/doc-step-pass-fail

Document Step.passed and Step.failed
updating docs for greencard stuff...
adding bitdeli badge