Contents:
DummyTileSource
DummyTileSource.canRead()
DummyTileSource.extensions
DummyTileSource.getTile()
DummyTileSource.levels
DummyTileSource.name
DummyTileSource.sizeX
DummyTileSource.sizeY
DummyTileSource.tileHeight
DummyTileSource.tileWidth
canRead()
open()