switches to using the passed environment, rather than Rails.env
Merge pull request #2 from ctaintor/change_to_using_environment

switches to using the passed environment, rather than Rails.env
removes erb require (it's not used)
slight addition to README
Merge pull request #4 from ctaintor/update_readme

slight addition to README
Merge pull request #3 from ctaintor/remove_erb

removes erb require (it's not used)