ENYO-2784: ActionPopup refactoring to be re-used: saveActionPopup and ProjectDeletePopup modified in consequency. ErrorPopup lightly i18ned
ENYO-2784: Add existing file checking for saved-as file action and use the refactored ActionPopup for it
ENYO-2784: remove debug code
ENYO-2784: remove unnecessary code
Merge remote-tracking branch 'origin/master' into ENYO-2784
ENYO-2784: fix a bad property settings
ENYO-2784: fix the name reconstruction in the FileChooser for files in the root folder
Merge remote-tracking branch 'origin/master' into ENYO-2784
Merge pull request #514 from enyojs/ENYO-2784

ENYO-2784: Overwrite checking for saved-as files

Tested on Linux/FF Mac Safari and Opera.