update cabal file with new repo and maintainer info

Author: mitchellwrosen

unix-compat.cabal

@@ -6,11 +6,11 @@ description:    This package provides portable implementations of parts
                 package when available. When it isn't available,
                 portable implementations are used.
 
-homepage:       http://github.com/jacobstanley/unix-compat
+homepage:       http://github.com/haskell-pkg-janitors/unix-compat
 license:        BSD3
 license-file:   LICENSE
 author:         Björn Bringert, Duncan Coutts, Jacob Stanley, Bryan O'Sullivan
-maintainer:     Jacob Stanley <[email protected]>
+maintainer:     Mitchell Rosen <[email protected]>
 category:       System
 build-type:     Simple
 cabal-version:  >= 1.10
@@ -20,7 +20,7 @@ extra-source-files:
 
 source-repository head
   type:     git
-  location: [email protected]:jacobstanley/unix-compat.git
+  location: [email protected]:haskell-pkg-janitors/unix-compat.git
 
 flag old-time
   description: build against old-time package