GHC 7.6.1 changes numeric hierarchy again, sigh.
Merge branch 'master' of github.com:snapframework/snap-core
Commit failing test for #175.
URL-decode before calling 'fromBS' in pathArg. Fixes #175.
Merge branch 'master' into io-streams

Conflicts:
	snap-core.cabal
	src/Snap/Internal/Parsing.hs
	src/Snap/Internal/Types.hs
	test/suite/Snap/Core/Tests.hs