Add option to suppress startup messages?

[dram]

Can we add option (e.g. -q) to suppress startup messages like following, so that Self will be more friendly when writing CLI programs:

for I386:  LogVMMessages = true
for I386:  PrintScriptName  = true
for I386:  Inline = true
for I386:  SICDeferUncommonBranches = false (not implemented)
for I386:  SICReplaceOnStack = false (not implemented)
for I386:  SaveOutgoingArgumentsOfPatchedFrames = true
Reading foo.self...