Force the script to run with bash (not sh)

since the generated script(s) kinda assume bash rather than dash, as is
the case on *buntu.  Also saving scripts in ~/.travis/.build by default,
but only for forensic purposes, not using as a cache or whatever.
feat(sauce-connect): update Sauce Connect addon to 4.0

Fix travis-ci/travis-ci#2019.
Pointing at current location for artifacts stable binary
Correcting artifacts install script to work os OSX as well
shellescape the service name
change around the order of things a little
a little tweaking
move the postgres add-on to run after setup

but before paranoid mode
not happy with the naming, but getting there
correct a spec
need to check for the const on the class, not the instance
allow for hostnames and postgres to be sudo safe

also change REQUIRES_SUPER_USER to SUPER_USER_SAFE
oops, its shellwords
fix soooo many spec
hosts: shellescaped output should not be quoted
hosts: change the other test to add the shellescape stuff
spec: change formatter to documentation
what the world needs now, is echos, sweet echos
let the services RUN
what's another echo between friends