Fix last associated key prompt
Show probed key when creating a new machine
on create machine wizzard, set warnings for nephoscale driver if wrong input
Automated built of mist.js
Restore "Generate Key" feature in machine-add dialog
Fix key "probing" state icon update
Add spinner when adding a backend
Merge branch 'master' into backends
Merge branch 'master' into keys_refactoring
Show non-associated keys when clicking "add key" in single machine view. Fix ajax-loader position
Account for errors in deploy_script.

do not rerun if we hit an error -- we need to revisit this once
we are ready to support more images.
Automated build of mist.js
Merge branch 'keys_refactoring'
Merge branch 'backends'
Automated build of mist.js
Change request method of generate key
Automated build of mist.js
Merge branch 'master' into images_list