change internal data type(ApiaryReader).
change capture. add path, fetch 1step capture function.
generalize proxy.
Revert "change internal data type(ApiaryReader)."

This reverts commit 5bdab54d2909b79b93b0a87671ce6b04caaa112d.

Conflicts:
	src/Control/Monad/Apiary/Action/Internal.hs
suppress warning.
fix name collision(path).
fix name collision(SessionConfig).
fix name collision(examples/csrf.hs).
version bump up.
Merge branch 'develop'

change capture implementation.
add path, fetch pure capture function.

apiary-clientsession:
  add prefix to SessionConfig field names.