Merge branch 'release/0.2.2' into develop
Add logging of script output when in error
Update dependency versions

Depend on clojure 1.4.0, drop slingshot, and use clj-ssh 0.5.0.
Reduce script output polling interval
Remove the :error key map on non-zero exit

The generation of an error map should be the caller's responsibility.
Update readme and release notes for 0.3.0
[maven-release-plugin] prepare release ssh-transport-0.3.0
[maven-release-plugin] prepare for next development iteration
Merge branch 'release/0.3.0'