"behave --format help" raises an error

[jenisys]

VERSION: 1.1.0
CONTEXT: command-line processing

"behave --format help" raises an error because it tries to access the non-existing help formatter.
Therefore, it does not behave as described in the commands help text.

OOPS: Mmh, untested command-line behaviour ,-)

[jenisys]

NOTE:
This problem occurs only when "behave.ini" exists.

ADDONS to this trouble-ticket:
behave --format=json fails with:
...
failed = scenario.run(runner)
File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/behave/model.py", line 431, in run
runner.formatter.step(step)
File "/Library/Frameworks/Python.framework/Versions/2.6/lib/python2.6/site-packages/behave/formatter/json.py", line 50, in step
element['steps'].append(step.to_dict())
AttributeError: 'dict' object has no attribute 'to_dict'

IF "behave.ini" config-file exists (with format=pretty):
behave --format=xxx fails for different reasons with xxx=pretty, plain, json.

[jenisys]

FIXED on jenisys/behave with tag=fix-issue31

[quantoid]

Raised #59 for format=json error rather than overloading this ticket with a different failure.

[jenisys]

FIXED-IN: 1.2.2.16

Make formatter list more predictable to simplify that selftest can verify that this issue is fixed.