[ja] follow up core-libraries/components/authentication section
Update docs for new CakeNumber feature.
Add notes about properly escaping output.
Fix incorrect formatting.
Added return before redirect
Grammar fixes
Removed else clause after redirect

As discussed here:
https://github.com/cakephp/docs/commit/553f148ae533b382eee670b348a02fd19f064ffb#commitcomment-3818946
Merge pull request #679 from ricog/patch-2

Grammar fixes
Merge pull request #680 from ravage84/else-clause-after-redirect

Removed else clause after redirect
[fr] Follow #667

Update email.rst
Updated a minor grammar edit for the tutorial intro
Merge pull request #682 from bcrowe/minor-intro-grammar

Updated a minor grammar edit for the tutorial intro
Updated system to be plural
Merge pull request #683 from bcrowe/grammar-systems-plural

Updated system to be plural
Added note about Sanitize deprecation in migration guide and removed it's page.
Added a few readability and consistency edits to sessions
Merge pull request #685 from bcrowe/session-edits

Added a few readability and consistency edits to sessions
Merge pull request #684 from ADmad/deprecated-sanitize

Added note about Sanitize deprecation in migration guide
Fix a small PHP syntax error in 'Using and Configuring Helpers'.
Merge pull request #686 from jaysh/master-helpers-example-syntax-error

Fix a small PHP syntax error in 'Using and Configuring Helpers'.