Added module class param to prevent error

Prevent 'Object configuration must be an array containing a "class" element.' error.
docs/guide-ja/start-workflow.md added [skip ci]
Merge pull request #5680 from softark/docs-ja-2014-10-21b

docs/guide-ja/start-workflow.md added [skip ci]
Merge pull request #5676 from bio/patch-1

Added module class param to prevent error
doc fix. [skip ci]
Fixes #5657: `yii\caching\ApcCache::mset()` and `madd()` may cause warning in some APC setup