Integrate Monty's support for the fsync primitive.
Integrate Monty's support for the fsync primitive.


git-svn-id: f18ccec24f938f15aa42574278fe0cc52f637e81@3471 fa1542d4-bde8-0310-ad64-8ed1123d492a

peteruhnak/pharo-vm,peteruhnak/pharo-vm,bencoman/pharo-vm,bencoman/pharo-vm,bencoman/pharo-vm,bencoman/pharo-vm,peteruhnak/pharo-vm,OpenSmalltalk/vm,bencoman/pharo-vm,peteruhnak/pharo-vm,bencoman/pharo-vm,timfel/squeakvm,OpenSmalltalk/vm,timfel/squeakvm,peteruhnak/pharo-vm,timfel/squeakvm,OpenSmalltalk/vm,bencoman/pharo-vm,OpenSmalltalk/vm,OpenSmalltalk/vm,peteruhnak/pharo-vm,OpenSmalltalk/vm,timfel/squeakvm,peteruhnak/pharo-vm,OpenSmalltalk/vm,bencoman/pharo-vm,OpenSmalltalk/vm,timfel/squeakvm,timfel/squeakvm,bencoman/pharo-vm,peteruhnak/pharo-vm,timfel/squeakvm,timfel/squeakvm