There were some reports that using a newer launcher together with an
outdated launcher was causing some issues since the new launcher would
write the new config file which would cause FSO to ignore the changes of
the old launcher since the new config file already exists.
This fixes that by adding a check for when the config locations were
last modified. On Linux and Mac it checks when the old config locations
were modified last while on Windows it checks the registry to determine
if there was a change after the new config file was created.
This fixes various issues I found while trying to compile FSO in a cross
compilation setup using MinGW. This is a prerequisite for merging Tea-CI
support.
FSO now allows the window title to be specified via game_settings.tbl, some never-used function arguments were pruned at the same time, and fred.rc now receives version information (for the About dialogue and the title bar) from a cmake-generated header, so the version numbers get filled in properly. Speaking of FRED's About dialogue, it now displays the copyright symbol properly.
This will use SDL_GetPrefPath to determine a suitable config directory which will be used for all runtime writing. Additionally all platforms will now use the configuration ini files, the Windows registry will be deprecated. For better compatibility with current installs there is a "legacy mode" which will work like the current install. It will be used as long as the launcher doesn't write the configuration file to the new location. Migrating old installs requires copying the existing pilot files to the new location and copying any existing configuration data.
Fixed bug in old ship choice screen that stopped ani repeating.
Changed all builds (demo, OEM) to use retail reg path, this means launcher can set all them up successfully.