using name of tower in tower select

lib/ruby_warrior/tower.rb

@@ -9,5 +9,6 @@ def initialize(path)
     def name
       File.basename(path)
     end
+    alias_method :to_s, :name
   end
 end

spec/ruby_warrior/tower_spec.rb

@@ -8,4 +8,8 @@
   it "should consider last part of path as name" do
     @tower.name.should == 'tower'
   end
+
+  it "should use name when converting to string" do
+    @tower.to_s.should == @tower.name
+  end
 end