fixed wording

"extends" is OOP term.
fixed little wording
Clarify timeout vs cookieTimeout

As best I can tell from the source, at least.
Merge pull request #531 from cincodenada/patch-2

Clarify timeout vs cookieTimeout
Redirect stderr to stdout in shell cron example.
[fr] Clarify timeout vs cookieTimeout
[fr] Correct grammar in fr/core-librairies/helpers/js.rst
[ja] Follow up #531
Merge pull request #533 from cakephp-fr/master

[fr] Clarify timeout vs cookieTimeout
Merge pull request #532 from Phally/patch-2

Redirect stderr to stdout in shell cron example.
[ja] follow up #532
coding standards cleanup
Merge pull request #534 from suzuki/feature/ja-follow-up-532

[ja] follow up #532
Merge pull request #535 from suzuki/feature/ja-follow-531

[ja] Follow up #531
fix link
complete sentence
add missing full stops for sentences