[network-manager-applet] (7 commits) ...c-e: merge branch 'th/validation-error-bgo754832'

[Thomas Haller <thaller src gnome org>]

Summary of changes:

  9491e73... c-e: fix clearing error in connection_editor_validate() (*)
  8a77b22... c-e: don't pass actionable argument to CEPolkitButton:updat (*)
  05a1b8e... c-e: fix icon and tooltip of "Save" button regarding author (*)
  9795468... c-e/trivial: rename virtual method validate() (*)
  e01de57... c-e: forward the validation error to print more sensible er (*)
  bd20efe... c-e: show tooltip with validation error (*)
  2805bf2... c-e: merge branch 'th/validation-error-bgo754832'

(*) This commit already existed in another branch; no separate mail sent