swipe effect using window.variables
replaced walk.js.coffee with walk.js vanilla js and added .gitignore file
fixed instructions code
added swipe left code to go to previous marker view
moved js from application.js to swipe.js, and refactored swipe right and left events
fixed corner markers
added swipe function
Merge branch 'master' of https://github.com/jennielouie/WalktopusV3