bump deps (transformers)
version 0.8.9.6
switch to exceptions package (0.4-0.6)

Conflicts:

	iteratee.cabal
	src/Data/Iteratee/Base.hs
	src/Data/Iteratee/IO/Handle.hs
Revert "remove Test and Bench sections from .cabal file"

This reverts commit 22a12fe9d3e9cee1ab271377ec2781641d44909c.

Conflicts:

	iteratee.cabal
cabal: clean up test-suite/benchmarks
BenchBase: newer bytestring defines NFData instance