[#4269] CS fixes

- EOF marker
Merge branch 'hotfix/4269'

Close #4269
Merge branch 'hotfix/4269' into develop

Forward port #4269
remove unused use
Added more test routes
allow default http responses to be sent in mvc stack
Move ExpectedException from annotation to ->setExpectedException()
Remove needless is_object check
begin,commit and rollback methods for PostgreSQL have been implemented
Merge branch 'master' of github.com:Thinkscape/zf2
Fixing incorrect Composer requirements.
Added failing test regarding infinite calls between Service Manager and some abstract factory
Added fix for abstract factory issue
Remove unnecessary annotations

- per @samsonasik
Set created manager as default manager for Containers

- Passes created `SessionManager` instance to
  `Container::setDefaultManager()`
Make ability to inject manager as Container default mutable

- New Config service key, "session_manager"
  - single key for now: "enable_default_container_manager". Defaults to
    true, meaning "inject the Container". Set to false to disable this
    behavior.
Merge pull request #4250 from Danizord/hotfix/4249

[#4249] Override 'ServiceManager::has' to do not use peering service managers
Merge branch 'hotfix/4250'

Close #4250
Fixes #3820
Merge branch 'hotfix/4250' into develop

Forward port #4250
Merge pull request #4238 from 3axap4eHko/constant

ValueGenerator constant detection