added new tile map for level. Edited map with Tiled. Added JSTileMap from GitHub to work with Tile map in SpriteKit.
added JSTileMap license.
added TmxTileMapLayer
load tile map to scene.
added physics bodies.
added breakables.
modified the maps at runtime.
added Bug layer to Tile Map. Added spawn points for Bugs and Player.
added object group to tile map layer so that we can load bugs and player from the tile map.
added collision layer for the water to tiled map.
added support for firebug.