Gallery2: ES translations

- Smart scene Tag

Change-Id: Ie4d475bf32a84756f99caab85abc55375286dbf3
Merge "Gallery2: ES translations" into cm-10.2
Add missing smart_scene_*.png MDPI assets

Change-Id: If65b63a1c79bfeb95ebeae24d4a97f8598519293
Merge branch 'cm-10.2' into martincz