Refactor Layouts

Layouts architecture were a piece of shit... this version cleans up but also breaks things and you need to follow these steps to fix your project:

• don't override VictoireCoreBundle:Layout:layout.html.twig directly but VictoireCoreBundle:Layout:defaultLayout.html.twig
• the initial VictoireCoreBundle:Layout:fullWidth.html.twig layout is now known as VictoireCoreBundle:Layout:defaultLayout.html.twig
• the VictoireCoreBundle:Layout:frontLayout.html.twig does not exist anymore
• the VictoireCoreBundle:Layout:base.html.twig's blocks were removed:
  • foot_script_additional
  • javascript
• the VictoireCoreBundle:Layout:base.html.twig has some new blocks:
  • victoire_ui
  • body_header
  • body_content
  • body_footer
• the VictoireCoreBundle:Layout:layout.html.twig:
  • has a new body_content_main block
  • wrap the body_content_main in a main#content tag
  • declare the main_content cms_slot_widgets (in the body_content_main block)
• the fos_js_routes.js is now generated with the prod suffix in prod environment

Fixed bugs:

• Error 500 on widget tabs (style) #440
• No style injections on a quantum widget #439

Closed issues:

• Clarify Layouts #326
• Error 500 while opening the blog through burger menu #444
• [1.6] Refactor the Blog creation #403

Merged pull requests:

• Feature/refactor layout system #1.7 #466 (lenybernard)
• Merge 1.6 into master #1.7 #465 (lenybernard)
• Bugfix/template widget edit #464 (paulandrieux)
• add user's profile serializer group #463 (lenybernard)
• fix template form #454 (paulandrieux)
• Use http authentication in tests #453 (paulandrieux)
• Improvments #452 (lenybernard)
• don't add slug type on homepage (because it's useless and buggy) #451 (lenybernard)
• Ensure to post widget form just once #450 (paulandrieux)
• kick getLocale usages #449 (paulandrieux)
• check the view exists #447 (lenybernard)
• use getName because name property is in the article translation #445 (paulandrieux)
• quantum fixes #441 (paulandrieux)
• use victoire_core_widget_new route instead of useless victoire_core_widget_new_quantum_item #438 (lenybernard)
• if not defined the user is by default admin #435 (Charlie-Lucas)