Script for sandboxed installation of Haskell packages

This script is a wrapper cabal or cabal-dev (depending on command line options
and availability of the commands on the system).

Usage:
  install-in-sandbox.sh [-C|-c] [-w WORKING_DIR] [SANDBOX_DIR] [-- CABAL_OPTIONS]
  install-in-sandbox.sh {-h|--help}

Example for installing cabal-dev in a sandbox:

  $ install-in-sandbox.sh /opt/cabal-dev/0.9.2 -- cabal-dev-0.9.2