This PR was merged into the 2.3 branch.Discussion----------[book] controller ch review, part 3| Q             | A| ------------- | ---| Doc fix?      | yes| New docs?     | no| Applies to    | all| Fixed tickets | noAmong other things i merged two subtitles "The Request object" and "The Response object". Subtitles are related.Commits-------73e7928 typo8793cb5 controller ch review, part 3

Making minor tweaks after reading through the changes in those PR's

* 2.3: (24 commits)  [#6365] Removing extra :  Added minor clarification  [#6360] Minor changes  [#6349][#6351][#6352]  Editing the Doctrine section to improve readability.  Minor corrections  Fixed typo  Fix escaping of backtick inside double back-quotes  Removed server:stop code block for 2.3  Removed the PR table example (this is now included by GitHub template)  Updated link to Translatable Extension  [reference] [constraints] added missing colon character for Image constraint documentation in YAML format.  Editing the Doctrine section to improve readability.  Removed info about reducing visibility for private  Updated link to Translatable Extension  Editing the Doctrine section to improve readability.  typo  controller ch review, part 3  typo  controller ch review, part 2  ...

* 2.7: (32 commits)  Fixed wrong code examples for Isbn constraint  unused use instructions  Fix typo in SwitchUserListener file name  Changed folder name to lowercase (best practises)  [#6365] Removing extra :  Add a note about enabling DebugBundle to use VarDumper inside Symfony  Update introduction.rst  Added minor clarification  Changed folder name to lowercase (best practises)  Fixed typo in path  [#6360] Minor changes  [#6349][#6351][#6352]  Editing the Doctrine section to improve readability.  Minor corrections  Fixed typo  Fix escaping of backtick inside double back-quotes  Removed server:stop code block for 2.3  Removed the PR table example (this is now included by GitHub template)  Updated link to Translatable Extension  [reference] [constraints] added missing colon character for Image constraint documentation in YAML format.  ...Conflicts:book/controller.rst

* 2.8: (37 commits)  Fixed wrong code examples for Isbn constraint  Calling the parent implementation is mandatory.  unused use instructions  Fix typo in SwitchUserListener file name  Reworded the example about $deep param  Changed folder name to lowercase (best practises)  [#6365] Removing extra :  Add a note about enabling DebugBundle to use VarDumper inside Symfony  Update introduction.rst  Added minor clarification  Changed folder name to lowercase (best practises)  Fixed typo in path  [#6360] Minor changes  [#6349][#6351][#6352]  Update "bootstrap.php.cache" to "autoload.php"  Editing the Doctrine section to improve readability.  Minor corrections  Fixed typo  Fix escaping of backtick inside double back-quotes  Made list of types more consistent  ...Conflicts:book/installation.rstbook/testing.rst

* 3.0: (38 commits)  Fixed wrong code examples for Isbn constraint  Calling the parent implementation is mandatory.  unused use instructions  Fix typo in SwitchUserListener file name  Reworded the example about $deep param  Changed folder name to lowercase (best practises)  [#6365] Removing extra :  Add a note about enabling DebugBundle to use VarDumper inside Symfony  Update introduction.rst  Added minor clarification  Changed folder name to lowercase (best practises)  Fixed typo in path  [#6360] Minor changes  [#6349][#6351][#6352]  Update "bootstrap.php.cache" to "autoload.php"  Editing the Doctrine section to improve readability.  Minor corrections  Fixed typo  Fix escaping of backtick inside double back-quotes  Made list of types more consistent  ...