Fix a bunch of deprecation warnings

mods/misc/sprint/esprint.lua

@@ -37,7 +37,7 @@ minetest.register_on_joinplayer(function(player)
 		hb.init_hudbar(player, "sprint")
 	else
 		players[playerName].hud = player:hud_add({
-			hud_elem_type = "statbar",
+			type = "statbar",
 			position = {x=0.5,y=1},
 			size = {x=24, y=24},
 			text = "sprint_stamina_icon.png",
@@ -70,14 +70,14 @@ minetest.register_globalstep(function(dtime)
 			--If the player is sprinting, create particles behind him/her 
 			if playerInfo["sprinting"] == true and gameTime % 0.1 == 0 then
 				local numParticles = math.random(1, 2)
-				local playerPos = player:getpos()
+				local playerPos = player:get_pos()
 				local playerNode = minetest.get_node({x=playerPos["x"], y=playerPos["y"]-1, z=playerPos["z"]})
 				if playerNode["name"] ~= "air" then
 					for i=1, numParticles, 1 do
 						minetest.add_particle({
 							pos = {x=playerPos["x"]+math.random(-1,1)*math.random()/2,y=playerPos["y"]+0.1,z=playerPos["z"]+math.random(-1,1)*math.random()/2},
-							vel = {x=0, y=5, z=0},
-							acc = {x=0, y=-13, z=0},
+							velocity = {x=0, y=5, z=0},
+							acceleration = {x=0, y=-13, z=0},
 							expirationtime = math.random(),
 							size = math.random()+0.5,
 							collisiondetection = true,