Code (presently commented out) added to compile all REPL expressions to native code
Headless mode introduced
1. Incorrect setting of first parameter to fprintf in format() fixed
2. In headless mode, print_to_transcript() prints to stdout
3. During serialization check for transcript_window to be non-null
4. In headless mode, format() is called instead of format_for_gui()
Command line options -i, -c and -e (for loading an image, console mode and single expression mode) and corresponding global variables introduced. GUI symbol in makefile done away with.
Compling calls to other closures too (previously commented out code now uncommented)