Added missing App.js file.
Added missing App.js file.

RallyHackathon/CustomDefectReports,MichaelByers/EnterpriseReport,RallyHackathon/CustomDefectReports,benridge/BurnChartExample,MichaelByers/EnterpriseReport,RallyHackathon/BurnChartExample,RallyHackathon/BurnChartExample,benridge/BurnChartExample