[ja] Follow up #484, #623 and more. follow up latest deployment.rst.
[ja] follow up #624
[ja] follow up #627
[ja] add missing semicolon
[ja] follow up #628
[ja] follow up #646
Merge pull request #663 from suzuki/ja-follow-646

[ja] follow up #646
Merge pull request #662 from suzuki/ja-follow-628

[ja] follow up #628
Merge pull request #661 from suzuki/ja-follow-627

[ja] follow up #627
Merge pull request #660 from suzuki/ja-follow-624

[ja] follow up #624
Merge pull request #659 from suzuki/ja-follow-484-623

[ja] Follow up #484, #623 and more. follow up latest deployment.rst.
Added deprecation of CAKEPHP_SHELL in the migration guide for 2.4
Merge pull request #664 from ravage84/CAKEPHP_SHELL-deprecation

Added deprecation of CAKEPHP_SHELL in the migration guide for 2.4