fix exception text
remove redundant examples
update tilesets readme
add coins example from haxeflixel
add reference from the parent TiledObjectGroup to TiledObject
fix bug introduced in last commit
add image_layer example
add licence text to asset loader
add support for image layers, fix #42
change desert_gigantic sample to use a structure that would cause the path problem
Merge branch 'dev' of ssh://github.com/kasoki/openfl-tiled into dev
remove the redundant rename
add path functions for helper
solve the path problem, fix #13
fix broken samples
set version to 0.4.2