fake container defaults id to 11 random chars
fake container defaults id to 11 random chars

Signed-off-by: Max Brunsfeld <8ee73e75b50cc292b5052b11f2ca25336d3e974e@pivotallabs.com>

savaki/garden,tangfeixiong/garden,cloudfoundry-incubator/garden,tsaleh/garden,tangfeixiong/garden,tsaleh/garden,savaki/garden,cloudfoundry-incubator/garden