both versions:
- fixed exporting PSD when layer names contain special/national characters
- bug fixes
Mac version:
- added shortcuts to Merge Down (Cmd+E) and Merge Visible (Cmd+Shift+E)
iOS version:
- added new shortcuts: Add Empty Layer (Cmd+Shift+N), Merge Down (Cmd+E), Merge Visible (Cmd+Shift+E)
- added displaying info popup after using shortcuts
