def project_entries(project_id, from, to, user_id=nil)
      opts = {:from => from, :to => to}
      opts[:user_id] = user_id if user_id
      Mash.new(self.class.get("/projects/#{project_id}/entries", :query => opts)).day_entries
    end
def project_entries(project_id, from, to, user_id=nil)
      opts = {:from => from, :to => to}
      opts[:user_id] = user_id if user_id
      Mash.new(self.class.get("/projects/#{project_id}/entries", :query => opts)).day_entries
    end
GET /projects/#{project_id}/entries?from=YYYYMMDD&to=YYYYMMDD