osproc: add warning about using waitForExit without poParentStreams
fixed typo in error message
nil -> discard
make C backend more robust against compiler bugs
some progress on the new name mangler
xmltree.`<>` macro works again
tstmtexprs.nim works again
Merge pull request #962 from barcharcraz/vstweaks

added another version of initGeneralTokenizer
Merge pull request #963 from zielmicha/wait-for-exit-doc

osproc: add warning about using waitForExit without poParentStreams
Fixes sockets2 on Windows.