jumbopatch, vtables and parent scopes are now working properly!

Rev: src/Makefile.in:1.207
Rev: src/backend.c:1.56
Rev: src/block_alloc.h:1.24
Rev: src/builtin_functions.c:1.300
Rev: src/compilation.h:1.20
Rev: src/docode.c:1.80
Rev: src/interpret.c:1.166
Rev: src/interpret.h:1.66
Rev: src/interpret_functions.h:1.31
Rev: src/las.c:1.192
Rev: src/main.c:1.100
Rev: src/object.c:1.145
Rev: src/program.c:1.265
Rev: src/program.h:1.105
Rev: src/testsuite.in:1.323
Rev: src/threads.c:1.139