fix Method Hashable instance.
enhance performance. change Path instance.
enhance parameter reading performance.
update example.
enhance benchmark, Method parser. update cabal.
Revert "no CPS."

This reverts commit 2bb883c818a770f54ed3c832f077dcd2988a9025.

Conflicts:
	src/Control/Monad/Apiary/Action/Internal.hs
	src/Control/Monad/Apiary/Filter.hs
	src/Control/Monad/Apiary/Filter/Internal/Capture.hs
	src/Control/Monad/Apiary/Internal.hs