2012 27th April - 18th May 1.0.1

	Modified index and rindex return code when failing searched.

	Modified Makefile.in and configure.in and completion.pi

	Test --with-static configure option and have made it workable

	Modified environment block completion

	Made an array index or a hash key writable with variable, ex) $a[$b]

	add "jump" and "menu" user functions

	add -index option to var inner command

	Modified context pipe and treating stdin on -c option

	add macro to readline completion. type C-x on the interactive shell

	add "readline" inner command

	Wrote English usage and helps

	Released Pipes version 1.0.1 at 18th May
