Please merge my files

Added      app/img/input-curve-left.png
Added      app/img/input-curve-right.png
Added      app/img/phones/sp1.jpg
Added      app/img/phones/sp2.jpg
Added      app/img/phones/sp3.jpg
Added      app/img/phones/sp4.jpg
Added      app/js/vendor/bootstrap.min.js
Modified   app/index.html