revise getting messages
refactor class name
update models
revise model
add query methods
revise the config path
implement subjects
revise find method that choice unique date
revise option parser
update spec
revise commander
create chatwork keeper class
add a api_token field
revise chatwork
add a create-message method
add a chatworkk_keeper spec
revise to updating observations
- delete one row
- rename name column
tmp
Merge remote-tracking branch 'origin/feat/model'

Conflicts:
	lib/chocolate.rb
	lib/chocolate/chatwork.rb
	lib/chocolate/fwrs_factory.rb
	lib/chocolate/model/fwrs.rb
	lib/chocolate/model/fwrs_db.rb
add a validation