Added function UNIMPLEMENTED to document what is missing.
Added functions.lisp
Fixed invocation of Lush functions
Added funcdef and pretty
Missing lush-user:mapwhile in package.lisp
Fixed typos in DEFGENERIC and DEFCLASS forms
Fixed typo in iterator.lisp
Added dispatch macro characters
Fix the detection of macros in the evaluator: it now detects special forms. In EVAL-LUSH, set the package and the readtable.
Added macro characters