added empty autotest/discover.rb to satisfy new requirements of ZenTest-3.9.0
added empty autotest/discover.rb to satisfy new requirements of ZenTest-3.9.0


git-svn-id: 7c1659e0f98dda52dfd8ce475cf311495cbaa212@3275 410327ef-2207-0410-a325-f78bbcb22a5a

mcmire/rspec-rails,weplay/rspec-rails,infininight/rspec-tmbundle,dchelimsky/rspec-rails,alitalia/rspec,rspec/rspec.tmbundle,drnic/rspec-rails,alitalia/rspec,chip/rspec-tmbundle,mrkn/rspec,patmaddox/rspec,patmaddox/rspec,patmaddox/rspec2rails2,dchelimsky/rspec-stories,dchelimsky/rspec,infininight/rspec-tmbundle,dchelimsky/rspec,rspec/rspec.tmbundle,graaff/rspec,phinze/rspec,dchelimsky/rspec-stories,die-antwort/rspec-tmbundle,die-antwort/rspec-tmbundle