Fixes tsan trace report between lua viewscreen and other threads running
lua without CoreSuspender lock. But I would assume similar races exists
when using lua from console thread, remote thread and vmethods same time.
Deprecated in Lua 5.3, but still contains some useful things, like extract()
Also helps maintain backward-compatibility with scripts that target older DF
versions (e.g. Mifki's dfremote project)
Removed t_virtual.
Made lua use C++ compiler
Removed many silly exception types from Error.h and renamed the rest.
Removed Brush classes from tiletypes plugin.
Pauli
Ben Lubar
lethosor
Vitaly Pronkin
Alexander Gavrilov
Warmist
Petr Mrázek