Rakefile in rest-graph-1.5.0 vs Rakefile in rest-graph-1.6.0

@@ -13,10 +13,11 @@
 Bones{
   ruby_opts [''] # silence warning for now
 
   version RestGraph::VERSION
 
-  depend_on 'rest-client'
+  depend_on 'rest-client'    , :development => true
+  depend_on 'em-http-request', :development => true
 
   depend_on 'rack'     , :development => true
 
   depend_on 'yajl-ruby', :development => true
   depend_on 'json'     , :development => true