Store + Shipping + Menus
Store + Shipping + Menus

* Using new Store feature from Elcodi
* Added Store management in Admin
* Changed all definitions that was depending on such implementation
* Removed under construction logic and tests

* Removed menu fixtures
* Defined them as dynamic content. Some of them are generated dinamically, and
  some of them statically.
* Added neede menu builders in every Admin bundle
* Changed the way menu is loaded in Admin

* Removed dependency with Configuration and Configuration annotation, in order to use
  new implementation.
* Removed configuration elements
* Removed all `elcodi_config` twig extension usage

* Moved custom shipping logic from elcodi/elcodi to elcodi-plugins/*
* Added full repo inside Plugin folder
* Using new Shipping engine

* Updated some code in order to be compatible with Sf2.7 deprecations

Ready for Elcodi Beta! Auu! Auu!

elcodi-plugins/ProductCsvBundle,elcodi-plugins/ProductCsvBundle