Merge pull request #866 from inthause/documents

Implement fees and discounts on Cart and Order
Enhance variant editor. Add quick action on product list.
Enhance FO product. Use boolean categorizable to display final variant product or not
Merge pull request #869 from loiccouturier/master

Enhance variant editor and Fo product
[FIX #813] Hide stock thresholds if infinite stock is active.
Fix comments and code formatting.
Fix cross selling block.
Enhancements in product display in front office:
- add pictograms display
- in variant products fix selection of visuals
- some fixes on visuals display
Merge pull request #870 from intportg/dev

Product display (pictograms and visuals) + fixes
Update Elastica to run with elastic search 1.0. Fix product indexation
Merge pull request #871 from loiccouturier/master

Update Elastica to run with elastic search 1.0. Fix product indexation
Enhance product editor for variant
Merge pull request #872 from loiccouturier/master

Enhance product editor for variant
Add 'FRC' geo Zone in setup
Deactivate template page cache in development mode.
Add coupons implementation in Cart and Order
Fix \Rbs\Generic\Json\Export class