Update README.
Use separate xml file to keep track of data dir.
Update data_dir references to use new locationsettings.
Missed game.py
Reenable changing data_dir.
More locationsettings changes.
Add some debugging.
More locationsettings changes.
Fix up event bind.
Fix up use of defaults variable.
Fix up use of defaults variable.
Disable data_dir buttons for now.
Increment version to 1.0.1
Update CHANGES.
Fix bad reference to settings causing program to crash if not using the default image directory.
Fix WriteSettingsFile to refer to itself; enable setting data directory.
Update CHANGES and version.
Merge pull request #27 from gryffon/documentation

Merge pull request #18 from gryffon/master
Merge pull request #28 from gryffon/master

Bring up to date with master