For more flexibility, the base api is split into 3 phases:
alloc, setSize, and construct. No support for non-actual
buildings like stockpiles and activity zones at the moment.
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.
Petr Mrázek
Alexander Gavrilov