Tasks

•   orientation property
•   mapSize property
•   tileSize property
•   layers property
•   tilesets property
•   filename property
•   resources property
•   objectGroups property
•   properties property
•   tileProperties property
• + formatWithTMXFile:

  creates a TMX Format with a tmx file

• + formatWithXML:resourcePath:

  creates a TMX Format with an XML string and a TMX resource path

• – initWithTMXFile:

  initializes a TMX format with a tmx file

• – initWithXML:resourcePath:

  initializes a TMX format with an XML string and a TMX resource path