added docs for the core team
feature #3777 added docs for the core team (fabpot)

This PR was submitted for the master branch but it was merged into the 2.3 branch instead (closes #3777).

Discussion
----------

added docs for the core team

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

The Symfony Core Team is back!

Commits
-------

d734600 added docs for the core team
Update factories.rst

your factory method should be static to work!
Update factories.rst
Update factories.rst
minor #3770 Update factories.rst (AlaaAttya)

This PR was submitted for the 2.4 branch but it was merged into the 2.3 branch instead (closes #3770).

Discussion
----------

Update factories.rst

your factory method should be static to work!

Commits
-------

97ed5ce Update factories.rst
aefc36c Update factories.rst
a9cfdb2 Update factories.rst
Update .gitignore example

As confirmed by WouterJ on Stack Overflow [1], the example
.gitignore file [2] is not up-to-date.

This commit updates the documentation to reflect the current state
of the .gitignore file that is included in the Symfony Standard
Edition distribution [3].

[1] http://stackoverflow.com/q/23437768/1001110
[2] http://symfony.com/doc/current/cookbook/workflow/new_project_git.html#initial-project-setup
[3] https://github.com/symfony/symfony-standard/blob/master/.gitignore
Update the complete 'Initial Project Setup' paragraph

As proposed by WouterJ in https://github.com/symfony/symfony-docs/pull/3827
this commit rewrites the 'Initial Project Setup' paragraph.

The documentation now describes the recommended way of creating a
new Symfony2 project, using Composer to download the Standard Distribution
+ vendors (instead of downloading the zipped version). As the Standard
Edition already contains a .gitignore, the example is replaced by a
link to the one stored at GitHub. The article also explains which files
are excluded by .gitignore.

The last step (downloading vendor libraries using Composer) is removed
as this is now covered by step 1.
[Contributing] consistent headlines
[Components] consistent headlines
fix the wording in versionadded directives
Indent the tip to be on the same level as the list item
Replace numbered list items with #

...so we don't have to renumber them every time we remove/add a new
item.
remove unnecessary rewrite from nginx conf

It is unnecessary to rewrite to a different URL when you can simply have the request be handled by app.php
feature #3704 [Form] Added documentation for Form Events (csarrazi)

This PR was merged into the 2.3 branch.

Discussion
----------

[Form] Added documentation for Form Events

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

Added initial documentation for Form Events:

* List of events
* Use cases for each event
* Description of the events workflow
* Flow charts for illustration
* Registering event listeners or subscribers in a form
* Describing the data available for each event

Commits
-------

98de95a [Form] Added documentation for Form Events
bug #3779 [Book][Security] constants are defined in the SecurityContextInterface (xabbuh)

This PR was merged into the 2.3 branch.

Discussion
----------

[Book][Security] constants are defined in the SecurityContextInterface

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

Commits
-------

4b7c8c2 [Book][Security] constants are defined in the SecurityContextInterface
Fix issue #3712
Alternative -n option
bug #3716 Fix issue #3712 (umpirsky)

This PR was submitted for the master branch but it was merged into the 2.3 branch instead (closes #3716).

Discussion
----------

Fix issue #3712

Commits
-------

90f0a1f Alternative -n option
4446902 Fix issue #3712
fix filename typo in cookbook/form/unit_testing.rst