fix incorrect vert.y

Author: litefeel

Assets/BitmapFontImporter/Editor/FntParse.cs

@@ -293,7 +293,7 @@ private CharacterInfo CreateCharInfo(int id, int x, int y, int w, int h, int xo,
             vert.x = xo;
 #if UNITY_5_0 || UNITY_5_1 || UNITY_5_2
             // unity 5.0 can not support baseline for 
-            vert.y = 0;
+            vert.y = yo;
 #else
             vert.y = yo - lineBaseHeight;
 #endif