- add set/getConnectTimeout(), add set/getTimeout() to
  read/write timeout values on the underlying HttpConnection
  object.
- add tests for timeout accessors
- add more tests
- fix bug when passing non-date object to xml.rdf.RDFNewsFeed::setChannel(), ::addItem()
- manually construct tree, getting rid of Node::fromArray()
  which is considered bad practise
Merge branch 'master' of github.com:xp-framework/xp-framework
Merge pull request #250 from kiesel/rest-add-timeouts

Provide accessors for HTTP timeouts to RestClient
- Announce #250 on 5.9-SERIES
- support for lang.types.String serialization