Replace deprecated methods for CakePHP 3.6

[jtraulle]

All deprecated methods/properties has been replaced by the new ones.
Test has been modified accordingly.

[codecov-io]

Codecov Report

Merging #672 into develop will not change coverage.
The diff coverage is 96.55%.

@@            Coverage Diff             @@
##             develop     #672   +/-   ##
==========================================
  Coverage      80.37%   80.37%           
  Complexity       543      543           
==========================================
  Files             52       52           
  Lines           1692     1692           
==========================================
  Hits            1360     1360           
  Misses           332      332

Impacted Files	Coverage Δ	Complexity Δ
src/Controller/Traits/LoginTrait.php	50.57% <ø> (ø)	51 <0> (ø)	⬇️
src/Controller/SocialAccountsController.php	77.77% <ø> (ø)	11 <0> (ø)	⬇️
src/Controller/Traits/SocialTrait.php	100% <ø> (ø)	4 <0> (ø)	⬇️
src/Controller/Traits/RegisterTrait.php	96.72% <ø> (ø)	16 <0> (ø)	⬇️
src/Controller/Traits/UserValidationTrait.php	84.44% <ø> (ø)	14 <0> (ø)	⬇️
src/Controller/Traits/SimpleCrudTrait.php	96.42% <100%> (ø)	10 <0> (ø)	⬇️
src/Auth/SocialAuthenticate.php	54.76% <100%> (ø)	77 <0> (ø)	⬇️
src/Controller/Component/UsersAuthComponent.php	80% <100%> (ø)	27 <0> (ø)	⬇️
src/Mailer/UsersMailer.php	100% <100%> (ø)	6 <0> (ø)	⬇️
src/Controller/Component/RememberMeComponent.php	86.66% <100%> (ø)	18 <0> (ø)	⬇️
... and 3 more

---

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[steinkel]

Impressive!
We'll take a look ASAP, thank you!!

[jtraulle]

Happy to help 🙂

[jtraulle]

All Friends Of Cake cake-36 branches has been merged 🎉
Have you had a chance to get a quick look at this MR @steinkel ? Last thing to be tagged/released before I can upgrade my app to 3.6 😉
No pressure however 😘

[saeideng]

you should update your branch before creating PR
or for now, re-base on the develop

[jtraulle]

Thanks for pointing that out @saeideng, I have merged the extra commits from develop branch into my branch 😉

[medero]

Nice work! Also looking to use in a 3.6 upgrade so can't wait!