Version 0.15.2 released

[Neil Mitchell]

Hi,

I've just released version 0.15.2 of Shake. The one thing that might
be of use to users is that I'm discouraging the use of addPath/addEnv
in favour of the newly introduced AddPath/AddEnv. The new versions are
much easier to use, and compose much better. To a first approximation,
if you did:

path <- addPath [] ["MyDirectory"]
cmd path "mycommand"

Now you can do:

cmd (AddPath [] ["MyDirectory"]) "mycommand"

And as an added bonus, if you do two AddPath's they compose nicely,
instead of each replacing the other.

There are also fixes for earlier GHC's that upgrade filepath, and work
towards getting lint tracking in Linux (will be available and
documented in the next release with any luck).

Thanks, Neil