bjorn/tiled — pull request #244 by o11c (2012-07-20 21:43:22+00:00)
Title: respect existing layer format of all loaded maps

These commits change the save process to allow overriding on a per-map basis,
add an option to map properties,
and set the format on loading a map.

This fixes issue #241

An improvement would be to have a global setting of whether to respect the existing map format or use the global setting (which is now used only for newly created maps).