Remove request scope on FormManager and Form helper

Remove request scope on FormManager and Form helper

Fix property
Merge pull request #193 from KnpLabs/fix/form-manager

Remove request scope on FormManager and Form helper
Delete test

:blush:
Merge pull request #194 from cordoval/patch-1

Delete test
Use symfony dispatcher instead of doctrine one

Using doctrine event manager to dispatch domain events prevents domain
event listeners to depend on doctrine (circular reference). Plus, it
doesn't make much more sense to dispatch domain events through a storage
layer dispatcher.

This commit allows to dispatch domain events through an
event_dispatcher (it uses the symfony event dispatcher by default).
Merge pull request #195 from gquemener/event/use-sf-dispatcher

[Domain Event] Use symfony dispatcher instead of doctrine one
Prevented removed provider events to be ignored
Merge pull request #196 from gquemener/event/dispatch-removed-provider-events

Prevented removed provider events to be ignored
Using Inflector and PropertyAcces when possible
Merge pull request #200 from Einenlum/develop

Use Inflector and PropertyAccess when possible
Instantiate PropertyAccessor in construct
Merge pull request #202 from Einenlum/fix/propertyaccess-instantiation

Instantiate PropertyAccessor in construct
[RFC][POC] a service-tag based routing loader; committed at 9000m alt :)