Fix issue #42
Removed extra dot in issue #41 selftest
Merge branch 'issue42' of https://github.com/roignac/behave into roignac-issue42
Implements change-request #42 that all undefined steps are shown, not just the
first one in a scenario.
show_snippets: Correct dest for --snippets option.
Refactor: Introduce runner.make_undefined_step_snippet().
Multiline text parsing: Improve diagnostics when hidden non-whitespace text removal occurs.
Disable --strict option (not used anywhere).
Provide new implemenation for undefined-step discovery in Scenario (with tests).