ENYO-3287: avoid opened files without ACE session like images
Merge branch 'master' of github.com:enyojs/ares-project into ENYO-3287
Merge branch 'master' of github.com:enyojs/ares-project into ENYO-3287
Merge branch 'master' of github.com:enyojs/ares-project into ENYO-3287
ENYO-3287: shorten code
Merge pull request #616 from enyojs/ENYO-3287

ENYO-3287: Do not sync opened files without ACE session when designer mode is toggled on