Imagemagick not installing on ubuntu 12.04.3 & recipe not being cloned properly.

This pull request fixes 2 issues I ran into while attempting to run this recipe. At first I found that I was receiving an error with imagemagick and set up the recipe to use the opscode imagemagick recipe instead. After I fixed that, I found that the recipe was skipping right over pulling down gitorious into /var/www/gitorious because the directory already contained .ssh and another directory at that point, so I moved the clone to happen earlier in the code.