CMS-1422 Feedback message - Replace text in save and publish

Currently the text says:
"Content site:/full/path/to/content was saved/published"
Replace with -> "Display-name was saved/published"

Also, for some strange reason the feedback message when saving in "content studio/schema manager" is the old green color - should be blue.
Finnally, also fix feedback text when saving in content studio to use "display-name was saved".