Atlas fails to load a map/rms/rmgenlib when %localappdata%\0ad\... is deleted after using it

[FeXoR]

This is just a minor bug but for me it would be very convenient if this could be fixed.

To reproduce:

• Copy an rms to %localappdata%\0ad\cache\mods\public\maps\random
• Generate that map
• Delete the copied file
• Generate again

-> Atlas will fail and reset all player settings (wich currently doesn't work properly as well)

IMO Atlas should in this case just reload the file from it's directory (or the public.zip)

If a real custom content directory is added it's ofc not an issue any more but perhaps it would be an easy to fix thing and would not be bad to have.

[FeXoR]

The player setting reset is fixed.

[historic_bruno]

I don't know what to say about it, messing directly with the cache is going to be a naturally fragile process.