Merge branch '21-manual' into 26-sym-binding
Merge branch '21-apply-dots' into 26-sym-binding
Merge branch '21-apply-dots' into 26-sym-binding
Merge branch '23-more-dotcode' into 26-sym-binding
Merge branch '23-prim-formals' into 26-sym-binding
Merge branch '26-new-var' into 28-undo-context-chng
put last failed lookup (of function) in symbol too
Merge branch '26-sym-binding' into 28-undo-context-chng
Merge branch '26-sym-binding' into 30
typo
Merge branch '28-undo-context-chng' into 30