New patch! New minor biome : SKY! , Wings, New scepter, Update LUA API!

Changelog : 
- New minor biome: sky
- Wings (craft using loot from the master - sky)
- New magic scepter
- Lua API for backgrounds (backgrounds can be modded / added)
- Most backgrounds ported to lua
- Lot of bugs fixed

Changes
- Infinite jump/dash removed
- Map height increased

Note: **
a new map is required to access the sky biome
**

That's all for today, thank you for your support and do not hesitate to talk with us on our discord! http://discord.gg/planetcentauri