Fix deploy script -- build/ folder (#4130)
Fix deploy script -- build/ folder (#4130)

* explicitly mv the gitignore file

* Adding a sigh build step to the deploy script

* Re-organizing build file

putting like steps next to each other.

PolymerLabs/arcs,PolymerLabs/arcs,PolymerLabs/arcs,PolymerLabs/arcs,PolymerLabs/arcs,PolymerLabs/arcs,PolymerLabs/arcs,PolymerLabs/arcs