Added a note about customizing a form with more than one template
Minor formatting improvement
Fixed minor formatting issue
Removed the old syntax and left just the "with" keyword syntax
Fixed a minor error
Move the section about collect: false to the cookbook entry

This keeps the chapter shorter
plug rules for static methods
minor #3864 plug rules for static methods (cordoval)

This PR was submitted for the master branch but it was merged into the 2.3 branch instead (closes #3864).

Discussion
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plug rules for static methods

| Q             | A                   |
| ---           | ---                 |
| Doc fix?      | yes                  |
| New docs?     | no                 |
| Applies to    | 2.3+                |
| Fixed tickets | #3855               |
| License       | CC-ASA 3.0 Unported |

 Sent using [Gush](https://github.com/cordoval/gush)

Commits
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b7e4729 plug rules for static methods
[Console] Fix Console some $app to $this and getHelperSet()->get() to getHelper()
[Console] Fix Console component getHelperSet()->get() to getHelper()
Fixed a minor grammar mistake
[Console] Fixed QuestionHelper examples
use GitHub instead of Github
Removed wrong reference to cookbook

The /cookbook/request/mime_type article does not contain an example to
register a kernel listener since 2.5
Fixed bad indenting (the list was treated as a blockquote)
Fixed the format of one letter-based list
Fixed documentation for ProgressBar

This place is using the old ProgressHelper API and can be confusing when migrating.
minor #3990 Move the section about collect: false to the cookbook entry (weaverryan)

This PR was merged into the 2.3 branch.

Discussion
----------

Move the section about collect: false to the cookbook entry

| Q             | A
| ------------- | ---
| Doc fix?      | no
| New docs?     | no
| Applies to    | all (or 2.3+)
| Fixed tickets | no

This originates from #2952.

Cheers!

Commits
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d64fc55 Move the section about collect: false to the cookbook entry
Fix function example in expression language component

The is_string check needs to be part of the runtime code, not of the compilation code, because it needs to check that the argument is a string, not the compiled code to access it (which is always a string as it is source code
Removed return statement