[646] Update rails3-generators from 0.17.4 to 0.17.6 to prevent Factory Girl issues.
[646] Update rails3-generators from 0.17.4 to 0.17.6 to prevent Factory Girl issues.

* https://github.com/thoughtbot/factory_girl_rails/issues/53

CivicCommons/CivicCommons,CivicCommons/CivicCommons,CivicCommons/CivicCommons,CivicCommons/CivicCommons