[ticket/13033] Fix "Duplicate entry 'notification.type.*' for key 'type'"

Caused by the solution of PHPBB3-12990

PHPBB3-13033
[ticket/13130] Updates dependencies to Symfony 2.5

PHPBB3-13130
[ticket/12368] Always clean the cache prior to run the migrations

PHPBB3-12368
Merge branch 'develop-ascraeus' into develop
Merge pull request #3020 from Nicofuma/ticket/13130

[ticket/13130] Updates dependencies to Symfony 2.5

* Nicofuma/ticket/13130:
  [ticket/13130] Fix tests
  [ticket/13130] Updates dependencies to Symfony 2.5
Merge pull request #3017 from nickvergessen/ticket/13033

[ticket/13033] Fix "Duplicate entry 'notification.type.*' for key 'type'"
Merge branch 'develop-ascraeus' into develop

* develop-ascraeus:
  [ticket/13033] Fix "Duplicate entry 'notification.type.*' for key 'type'"