Allocator & garbage collection.

Please read: Allocators can be changed too but the used GC must be compatible with it. Read lib/system/osalloc.nim for details. An allocator must implement this interface: proc osTryAllocPages(size: int): pointer proc osAllocPages(size: int):

Allocator & garbage collection.

Can we change the use of "garbage collector". And "Allocator". Why ? How ? And what it's good for ?