Translations: Brazilian portuguese (@igorSilCar), Chinese-Simplified (@9-2-1), Korean (@notnickid)
New layouts: Swedish (@thabubble), Korean (@notnickid)

Improved computation of the swipe gesture and fix unstoppable key-repeat on
some devices.

Moved keys away from the edges of the screen and other improvements to the layouts.

Improved rendering of some symbols.

Added more characters to the keyboard:
- New combinations to Fn (@ArenaL5)
- Currency symbols
- Added arrow and box symbols (@sdrapha)
- F11 and F12.

Option for making modifiers lockable. (@sdrapha)
Fixes to the Spanish layout and other fixes. (@ArenaL5)
Many other fixes.

Huge thanks to the contributors: @igorSilCar, @sdrapha, @ArenaL5, @notnickid, @9-2-1, @thabubble