Fixed rpc not working on linux

libs/discordRPC.lua

@@ -1,5 +1,23 @@
 local ffi = require "ffi"
-local discordRPClib = ffi.load(love.filesystem.getSource().."/libs/discord-rpc")
+
+
+-- Get the host os to load correct lib
+local os = love.system.getOS()
+local discordRPClib = nil
+
+
+if os == 'Linux' then
+	discordRPClib = ffi.load(love.filesystem.getSource().."/libs/discord-rpc.so")
+elseif os == 'OS X' then
+	discordRPClib = ffi.load(love.filesystem.getSource().."/libs/discord-rpc.dylib")
+elseif os == 'Windows' then
+	discordRPClib = ffi.load(love.filesystem.getSource().."/libs/discord-rpc.dll")
+else
+	-- Else it crashes later on
+	discordRPClib = ffi.load(love.filesystem.getSource().."/libs/discord-rpc.e")
+	print('Discord rpc not supported on platform')
+end
+
 
 ffi.cdef[[
 typedef struct DiscordRichPresence {