Up dependency versions to allow build on GHC 7.10.1

[FranklinChen]

cabal install failed until I upped filepath to 1.4.* and time to 1.5.*

I'm on GHC 7.10.1.

$ cabal install
Resolving dependencies...
cabal: Could not resolve dependencies:
trying: haxl-0.1.0.0 (user goal)
trying: vector-0.10.12.3/installed-cbb... (dependency of haxl-0.1.0.0)
next goal: time (dependency of haxl-0.1.0.0)
rejecting: time-1.5.0.1/installed-f60..., 1.5.0.1, 1.5 (conflict: haxl =>
time==1.4.*)
rejecting: time-1.4.2, 1.4.1, 1.4.0.2, 1.4.0.1, 1.4 (conflict: vector =>
deepseq==1.4.1.1/installed-936..., time => deepseq>=1.1 && <1.4)
rejecting: time-1.3, 1.2.0.5, 1.2.0.4, 1.2.0.3, 1.2.0.2, 1.2.0.1, 1.2, 1.1.4,
1.1.3, 1.1.2.4, 1.1.2.3, 1.1.2.2, 1.1.2.1, 1.1.2.0, 1.0 (conflict: haxl =>
time==1.4.*)
Dependency tree exhaustively searched.