fix some screwups and formatting, restore find-functions

spine-lua/Animation.lua

@@ -371,11 +371,11 @@ function Animation.ColorTimeline.new ()
 		local g = lastFrameG + (frames[frameIndex + FRAME_G] - lastFrameG) * percent
 		local b = lastFrameB + (frames[frameIndex + FRAME_B] - lastFrameB) * percent
 		local a = lastFrameA + (frames[frameIndex + FRAME_A] - lastFrameA) * percent
-		--if alpha < 1 then
-		--	slot:setColor(slot.r + (r - color.r) * alpha, slot.g + (g - color.g) * alpha, slot.b + (b - color.b) * alpha, slot.a + (a - color.a) * alpha)
-		--else
+		if alpha < 1 then
+			slot:setColor(slot.r + (r - slot.r) * alpha, slot.g + (g - slot.g) * alpha, slot.b + (b - slot.b) * alpha, slot.a + (a - slot.a) * alpha)
+		else
 		 	slot:setColor(r, g, b, a)
-		--end
+		end
 	end
 
 	return self

spine-lua/Skeleton.lua

@@ -35,7 +35,7 @@ function Skeleton.new (skeletonData)
 		data = skeletonData,
 		bones = {},
 		slots = {},
-        slotsByName = {},
+    slotsByName = {},
 		drawOrder = {}
 	}
 
@@ -74,6 +74,11 @@ function Skeleton.new (skeletonData)
 		return nil
 	end
 
+  function self:findSlot (slotName)
+    if not slotName then error("slotName cannot be nil.", 2) end
+    return slotsByName[slotName]
+  end
+
 	function self:setSkin (skinName)
 		local newSkin
 		if skinName then

spine-lua/SkeletonData.lua

@@ -28,7 +28,7 @@ function SkeletonData.new ()
 	local self = {
 		bones = {},
 		slots = {},
-        slotNameIndices = {},
+    slotNameIndices = {},
 		skins = {},
 		animations = {}
 	}
@@ -57,6 +57,11 @@ function SkeletonData.new ()
 		return nil
 	end
 
+	function self:findSlotIndex (slotName)
+		if not slotName then error("slotName cannot be nil.", 2) end
+		return slotNameIndices[slotName] or -1
+	end
+
 	function self:findSkin (skinName)
 		if not skinName then error("skinName cannot be nil.", 2) end
 		for i,skin in ipairs(self.skins) do