Merge pull request #17 from essamjoubori/master

Controller is ready for data
deleted parserFileName. updated conflicts in parserFile
Merge pull request #18 from philelauria/master

deleted parserFileName. updated conflicts in parserFile
Added event listener and implemented items list parsing and async returns collection from Walmart API.
Merge pull request #19 from davemun/master

Added event listener and implemented items list parsing and async return...
Enhanced UI