patch applied (cabal): Add a README explaining how to build and run the test suite

[Duncan Coutts]

Thu May 27 14:27:01 PDT 2010  Johan Tibell <johan.tibell at gmail.com>
  * Add a README explaining how to build and run the test suite
  Fixes ticket #693.

    A ./tests/README

View patch online:
http://darcs.haskell.org/cgi-bin/darcsweb.cgi?r=cabal;a=darcs_commitdiff;h=20100527212701-73595-d61a28ecce7d518182433112c6857f8319716443.gz