Fixes #311 - updates virtualenv variable
Fixes #311 - updates virtualenv variable

Fixes #311 - updates virtualenv variable from `sheer` to `OAH` to be
consistent with internal and external docs.

fassake/bdd-security,contolini/owning-a-home,fna/owning-a-home,virginiacc/owning-a-home,contolini/owning-a-home,amymok/owning-a-home,OrlandoSoto/owning-a-home,Scotchester/owning-a-home,CapeSepias/owning-a-home,OrlandoSoto/owning-a-home,amymok/owning-a-home,fassake/bdd-security,CapeSepias/owning-a-home,imuchnik/owning-a-home,imuchnik/owning-a-home,Scotchester/owning-a-home,imuchnik/owning-a-home,virginiacc/owning-a-home,OrlandoSoto/owning-a-home,CapeSepias/owning-a-home,cfarm/owning-a-home,Scotchester/owning-a-home,fna/owning-a-home,fna/owning-a-home,virginiacc/owning-a-home,OrlandoSoto/owning-a-home,contolini/owning-a-home,virginiacc/owning-a-home,imuchnik/owning-a-home,fassake/bdd-security,CapeSepias/owning-a-home,contolini/owning-a-home,Scotchester/owning-a-home,fna/owning-a-home,amymok/owning-a-home,cfarm/owning-a-home,cfarm/owning-a-home,cfarm/owning-a-home,fassake/bdd-security,amymok/owning-a-home