Allow containers-0.8

[ingun37]

Could you allow containers 0.8 please?

Error: [Cabal-7107]
Could not resolve dependencies:
[__0] trying: answers-script-0.1.0.0 (user goal)
[__1] trying: lens-5.3.5 (dependency of answers-script)
[__2] trying: parallel-3.2.2.0 (dependency of lens)
[__3] next goal: containers (dependency of answers-script)
[__3] rejecting: containers-0.7/installed-f896 (conflict: answers-script => containers>=0.8)
[__3] rejecting: containers-0.8 (conflict: parallel => containers>=0.4 && <0.8)

[bgamari]

Released as revision 10.