added related products to the product object
added freeGifts to api
added generation, master product
added related products to the product object
added freeGifts to api
added generation, master product
fixed encoding issue for path in requests
Merge branch 'develop' of https://github.com/naveenhooda2000/opencommercesearch into develop
Merge pull request #186 from naveenhooda2000/develop

freeGifts, generation number,generation master added