[Book][Validation] configuration examples for the GroupSequenceProvider
Add missing autocomplete argument in askAndValidate method
Added some exceptions to the method order in CS
feature #3803 [Book][Validation] configuration examples for the GroupSequenceProvider (xabbuh)

This PR was merged into the 2.3 branch.

Discussion
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[Book][Validation] configuration examples for the GroupSequenceProvider

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | all
| Fixed tickets |

This pull requests adds examples in different formats for the GroupSequenceProvider feature of the Validator component (it's the completion of #3369).

Commits
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bfd2af4 [Book][Validation] configuration examples for the GroupSequenceProvider
bug #3805 Add missing autocomplete argument in askAndValidate method (ifdattic)

This PR was merged into the 2.3 branch.

Discussion
----------

Add missing autocomplete argument in askAndValidate method

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | 2.3
| Fixed tickets |

Commits
-------

d8059e2 Add missing autocomplete argument in askAndValidate method
minor #3807 Added some exceptions to the method order in CS (stof)

This PR was merged into the 2.3 branch.

Discussion
----------

Added some exceptions to the method order in CS

| Q             | A
| ------------- | ---
| Doc fix?      | yes
| New docs?     | no
| Applies to    | all
| Fixed tickets | n/a

See https://github.com/silexphp/Silex/pull/936#issuecomment-40591230 for the reason. Formalizing this case in the doc is a good idea IMO.

Commits
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3b8e644 Added some exceptions to the method order in CS
[#3807] Fixing period to semicolon thanks to @xabbuh
Merge branch '2.3' into 2.4