A programming langage 'perfume' rename from 'toy-lang'.
eval.c
	Delete command result variable '?'.
*
	Delete class Hash, Array and CALL/CC.
lib
	Update lsort.prfm and msort.prfm for use getter block.
parser.c
	Add '\' macro. (e.g. A B \ C D -> C D [A B])
doc
	Update docment.