added Rakefile
added Rakefile

currenly only the autospec command works, 'rake spec' still gives errors.

paresharma/medusa,niuli1991/anemone,balusamy/anemone,brutuscat/medusa,dfockler/anemone,chriskite/anemone,Pheonix7284/anemone,LeonidMorozov/anemone,yurakawa/anemone,withelmo/anemone,shinvdu/anemone,balusamy/anemone,balusamy/anemone