Fixed issue #1689
improve how example reads
Merge pull request #1695 from umpirsky/fix/issue-1689-a

Fixed issue #1689
Merge pull request #1899 from cordoval/patch-3

improve how example reads
[ProductBundle] Fix missing parent call in bundle that broke mappings
Merge pull request #1900 from stloyd/patch-3

[ProductBundle] Fix missing parent call in bundle that broke mappings
[Promotion] Add basic gift card code
[Promotion] Add missing const & extend fixtures
Fix promotion related specs
Add PoC for gift card validation to prevent cheats
Add frontend page where user can see all used giftcards ever
Add migration script
Fix reduction of gift card amount after order confirmation