[galaxy-dev] reference genomes missing

I installed a local instance of GALAXY following the instructions at "Get Galaxy ..." in the Wiki. It installed ok, but when I tried the Bowtie2 mapper with a test data set, I noticed that the reference genomes are missing. How can I get the reference genomes (e.g. latest version of mouse and human) and integrate them into Galaxy? Or is there a Galaxy version available that has the genomes already installed? Thanks Gerald