FIX parse cmdline flags - NOP for lsf
NOP REVU sys locks can be reenterant TODO
NOP remove deprecated comment
MOD add bulk update methods to system.Document - ADHOC TESTED

MOD env.go - use Document.Update()
MOD FIN system.Document interface & implementation

DEL Document.JustUpdate
FIN dirty document handling
MOD renmame Document.Update to Document.SetAll
MOD Environment uses Document.SetAll
TEST AD-HOC verified via lsf commands