switch to 60fps

easier to build for 60fps and switch to double frame counts if I can't meet it than to build for 30 and switch to 60. I think

vacation.p8

@@ -264,7 +264,7 @@ function _init()
  mainview = newtitle()
 end
 
-function _update()
+function _update60()
  mainview:update()
 end
 
@@ -302,7 +302,7 @@ end
 spring = {
  from = 128,
  to = 0,
- frames=60,
+ frames=120,
  f = 0,
 }
 mknew(spring)
@@ -326,7 +326,7 @@ end
 scoot = {
  from=0,
  to=-128,
- frames=30,
+ frames=60,
  f=0,
 }
 mknew(scoot)