* Fix NelmioApiDocBundle view customization instructions
"Just create a file..." was not OK (missing views/ subdirectory, wrong SwaggerUi case)
The path showcased as code-block's first row was OK
* View customization instructions: remove unnecessary /views/ subdirectory
* fix missing variable definition
* fix caching typo
* do not pre allocate reserved names
* use model hash instead of spl hash
* register later the model
* [JMSModelDescriber] Allow to use free form objects from JMS serialization
* Remove unused variable
* Refactor `describeItem()`
* Add more tests
* early detect of free form objects
* Add test for array property without type
* Merge `findPropertyType()` and `registerPropertyType()` methods
* Update `registerPropertyType()` in order to set "object" as type for arrays with undefined item types
* Set "additionalProperties" definition for arrays without defined items
* Simplified `registerPropertyType()`
* Merged `registerPropertyType()` into `describeItem()`
* Fix comment
* Fix comment
* if the group does not define per property exclusion, then remove possible obsolete property exclusions
* if the group is using only the default group, then is as not defining a group
* test that the user does not get a new alias just because another property pf the same object has some groups
* use strict comparison
* Allow to override certain parts of the template
* Twig template can be defined via config
* Blocks can be used to override/extend only parts of the template
* Fix spelling in documentation
* Fix extension configuration tree
* Fix unit tests by making constructor argument optional
* Add fonts block and split swagger initialization into own block
* Fix code style
* Remove Google fonts, remove configuration and add changelog entry
* Remove template argument from service definition
* Add correct path for overriding template
* Move re-add of Google Fonts to FAQ section in documentation.
* Remove unused class import
