remove absolute path from test in gecode.clj
remove absolute path from test in gecode.clj

While chef-full doesn't build gecode, clojure still seems to evaluate it.
On OS X, test => /bin/test

racker/omnibus,racker/omnibus,racker/omnibus,racker/omnibus,racker/omnibus,racker/omnibus,racker/omnibus,racker/omnibus,racker/omnibus,racker/omnibus,racker/omnibus