Add em-warden-client to travis.

Signed-off-by: Eric Malm <emalm@pivotallabs.com>
Bump ruby version to 1.9.3-p484.

Signed-off-by: Eric Malm <emalm@pivotallabs.com>
Replaced mock with double in specs.

Signed-off-by: Eric Malm <emalm@pivotallabs.com>
Protocol type to string sorts module constants. (fixes an intermittant travis test)

Signed-off-by: Eric Malm <emalm@pivotallabs.com>