updating fabfile to use fab_vars and some early init work
updating fabfile to use fab_vars and some early init work

jgcobb3/growth-yield-batch,jgcobb3/growth-yield-batch,Ecotrust/growth-yield-batch,Ecotrust/growth-yield-batch,Ecotrust/growth-yield-batch,jgcobb3/growth-yield-batch,Ecotrust/growth-yield-batch,Ecotrust/growth-yield-batch,Ecotrust/growth-yield-batch,jgcobb3/growth-yield-batch,jgcobb3/growth-yield-batch,jgcobb3/growth-yield-batch