default.el: idm-js2-declare-builtins declares IDM built-in functions automatically
Renamed Windows batch scripts and related directories from BAT to CMD
idmacs_install works for src/target dir with space/parens; added sub_trace for tracing
Working launcher idmacs.cmd; TODO: orphaned server files
Fixed infinite loop in idmacs-js2-declare-builtins; pretty print on Shift-F1