fix tests

spec/lib/gitolite_spec.rb

 require 'spec_helper'
 describe Gitlab::Gitolite do
-  let(:project) { double('Project', path: 'diaspora') }
+  let(:project) { double('Project', id: 7, path: 'diaspora') }
   let(:gitolite_config) { double('Gitlab::GitoliteConfig') }
   let(:gitolite) { Gitlab::Gitolite.new }
   before do
     gitolite.stub(config: gitolite_config)
+    Project.stub(find: project)
   end
   it { should respond_to :set_key }