WIP first POC on product PDF generation
WIP add a compiler pass and tagged generators
WIP full template generation with tagged services
WIP fix comments and licenses throughout recently added files
WIP html template
WIP add PDF generation using DOMPDF bundle and library
WIP rename generators into renderers
handle products without family
Force download of the generated PDF file
Merge branch 'ass/jc' of github.com:akeneo/pim-community-dev into ass/jc

* 'ass/jc' of github.com:akeneo/pim-community-dev:
  WIP rename generators into renderers

Conflicts:
	src/Pim/Bundle/EnrichBundle/Renderer/ProductPdfRenderer.php
Add button to download the generated product PDF
Replace string concatenation by clean sprintf in PDF response header
Merge pull request #1461 from akeneo/ass/jc_pim-3157

Create button to download PDF on product edition page
add dataLocale management for PDF generation
Images managment
Merge pull request #1462 from akeneo/ass/jc_pim-3168

add dataLocale management for PDF generation
get locale from context
fix rendering date
romove double reference on locale
fix rendering date