Add development dependency on rspec.

Signed-off-by: Matthew Boedicker <mboedicker@pivotallabs.com>
Check for ENV after checking CLI args [#71859060]

Signed-off-by: Matthew Boedicker <mboedicker@pivotallabs.com>
Add Code Climate and Travis badges

Signed-off-by: Matthew Boedicker <mboedicker@pivotallabs.com>